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Nerve hypersensitivity after high doses of vit D
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General Health
Question #15439
12 hours ago
31

Nerve hypersensitivity after high doses of vit D - #15439

Mirka

I started to experience burning sensation on my skin after taking 4000iu of vit d for about 6 weeks. I kept on taking vit d for another 3 weeks since I didn't know if there was correlation. In those next three weeks I started to get very anxious and couldn't handle any stress, always felt on edge. I stopped vit d since my levels hardly improved in those 9 weeks but my magnesium decreased to only 0,75 and my calcium shot up to 2,50. The anxiety and feeling on edge got better in like three days after stopping vit d. I then found out that my iron serum levels are only 5,67 and I have higher than normal both TBIC and UIBC but my hemoglobin is still okay 134. I feel lightheaded a lot and have terrible cold sensitivity and my heart is beating faster. The burning on my chest and upper back turn to cold sensation and rn it comes and goes. Could the low iron or my magnesium decreasing from vit d caused the initial nerve hypersensitivity?

Vitamin d
Nerves
Hypersensitivity
Low iron
Low magnesium
Nerve hypersensitivity
300 INR (~3.53 USD)
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Doctors’ responses

Dr. Prasannajeet Singh Shekhawat
I am a 2023 batch passout and working as a general physician right now, based in Hanumangarh, Rajasthan. Still kinda new in the bigger picture maybe, but honestly—every single day in this line teaches you more than textbooks ever could. I’ve had the chance to work under some pretty respected doctors during and after my graduation, not just for the clinical part but also to see how they handle people, real people, in pain, in panic, and sometimes just confused about their own health. General medicine covers a lot, right? Like from the smallest complaints to those random, vague symptoms that no one really understands at first—those are kinda my zone now. I don’t really rush to label things, I try to spend time actually listening. Feels weird to say it but ya, I do take that part seriously. Some patients just need someone to hear the whole story instead of jumping to prescription pads after 30 seconds. Right now, my practice includes everything from managing common infections, blood pressure issues, sugar problems to more layered cases where symptoms overlap and you gotta just... piece things together. It's not glamorous all the time, but it's real. I’ve handled a bunch of seasonal disease waves too, like dengue surges and viral fevers that hit rural belts hard—Hanumangarh doesn’t get much spotlight but there’s plenty happening out here. Also, I do rely on basics—thorough history, solid clinical exam and yeah when needed, investigations. But not over-prescribing things just cz they’re there. One thing I picked up from the senior consultants I worked with—they used to say “don’t chase labs, chase the patient’s story”... stuck with me till now. Anyway, still learning every single day tbh. But I like that. Keeps me grounded and kind of obsessed with trying to get better.
11 hours ago
5

Hello Mirka By going through your history and evaluation of your health status I must say that - 1) Vitamin D, Magnesium, and Calcium: - High-dose vitamin D can increase calcium absorption, which explains your raised calcium levels. - Vitamin D supplementation can sometimes lower magnesium, especially if your intake isn’t enough to keep up. Magnesium is crucial for nerve function, and low levels can cause symptoms like burning, tingling, and even anxiety. 2) Iron Deficiency: - Your serum iron is quite low, and high TBIC/UIBC means your body is trying to grab more iron, which is a classic sign of iron deficiency—even if your hemoglobin is still normal for now. - Iron deficiency can cause lightheadedness, cold sensitivity, palpitations, and sometimes nerve symptoms. 3) Nerve Hypersensitivity: - yes Both low magnesium and low iron can contribute to nerve hypersensitivity, burning sensations, and mood changes. - The improvement in anxiety after stopping vitamin D suggests your symptoms were likely related to the changes in magnesium and calcium balance.

Suggestions and treatment - 1) avoid over use of vit d3 and take only under doctor prescription 2) For Iron and magnesium consult me in personal for a balanced diet rich in iron and magnesium ( like leafy vegetables, nuts , seafood, etc )

Thank you

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Dr. Bharat Joshi
I’m a periodontist and academician with a strong clinical and teaching background. Over the last 4 years and 8 months, I’ve been actively involved in dental education, guiding students at multiple levels including dental hygienist, BDS, and MDS programs. Currently, I serve as a Reader at MMCDSR in Ambala, Haryana—a role that allows me to merge my academic passion with hands-on experience. Clinically, I’ve been practicing dentistry for the past 12 years. From routine procedures like scaling and root planing to more advanced cases involving grafts, biopsies, and implant surgeries. Honestly, I still find joy in doing a simple RCT when it’s needed. It’s not just about the procedure but making sure the patient feels comfortable and safe. Academically, I have 26 research publications to my credit. I’m on the editorial boards of the Archives of Dental Research and Journal of Dental Research and Oral Health, and I’ve spent a lot of time reviewing manuscripts—from case reports to meta-analyses and even book reviews. I was honored to receive the “Best Editor” award by Innovative Publications, and Athena Publications recognized me as an “excellent reviewer,” which honestly came as a bit of a surprise! In 2025, I had the opportunity to present a guest lecture in Italy on traumatic oral lesions. Sharing my work and learning from peers globally has been incredibly fulfilling. Outside academics and clinics, I’ve also worked in the pharmaceutical sector as a Drug Safety Associate for about 3 years, focusing on pharmacovigilance. That role really sharpened my attention to detail and deepened my understanding of drug interactions and adverse effects. My goal is to keep learning, and give every patient and student my absolute best.
9 hours ago
5

Hello dear See after careful evaluation it seems definitely vitamin d toxicity due to overdose It involves dizziness, headache and irritation too. Usually they start at 10,000 Iu but as per clinical history excess calcium causes problem with tremor and palpitations of heart Iam suggesting some tests for better clarification Serum vitamin d Serum calcium ECG Emr Urine calcium Kindly get these tests done for exact clarification and share result with general physician ( medicine) or endocrinologist for further evaluation Please donot take any medication without consulting the concerned physician Regards

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Dr. Shayeque Reza
I completed my medical degree in 2023, but honestly, my journey in healthcare started way before that. Since 2018, I’ve been actively involved in clinical practice—getting hands-on exposure across multiple departments like ENT, pediatrics, dermatology, ophthalmology, medicine, and emergency care. One of the most intense and defining phases of my training was working at a District Government Hospital for a full year during the COVID pandemic. It was chaotic, unpredictable, and exhausting—but it also grounded me in real-world medicine like no textbook ever could. Over time, I’ve worked in both OPD and IPD setups, handling everything from mild viral fevers to more stubborn, long-term conditions. These day-to-day experiences really built my base and taught me how to stay calm when things get hectic—and how to adjust fast when plans don’t go as expected. What I’ve learned most is that care isn't only about writing the right medicine. It’s about being fully there, listening properly, and making sure the person feels seen—not just treated. Alongside clinical work, I’ve also been exposed to preventive health, health education, and community outreach. These areas really matter to me because I believe real impact begins outside the hospital, with awareness and early intervention. My approach is always centered around clarity, empathy, and clinical logic—I like to make sure every patient knows exactly what’s going on and why we’re doing what we’re doing. I’ve always felt a pull towards general medicine and internal care, and honestly, I’m still learning every single day—each patient brings a new lesson. Medicine never really sits still, it keeps shifting, and I try to shift with it. Not just in terms of what I know, but also in how I listen and respond. For me, it’s always been about giving real care. Genuine, respectful, and the kind that actually helps a person heal—inside and out.
8 hours ago
5

low iron AND vitamin-D–induced magnesium depletion can absolutely cause the nerve hypersensitivity, burning/cold sensations, anxiety, and fast heart rate you experienced.

Your symptoms improving after stopping vitamin D strongly supports this.

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Dr. Arsha K Isac
I am a general dentist with 3+ years of working in real-world setups, and lemme say—every single patient teaches me something diff. It’s not just teeth honestly, it’s people… and how they feel walking into the chair. I try really hard to not make it just a “procedure thing.” I explain stuff in plain words—no confusing dental jargon, just straight talk—coz I feel like when ppl *get* what's going on, they feel safer n that makes all the difference. Worked with all ages—like, little kids who need that gentle nudge about brushing, to older folks who come in with long histories and sometimes just need someone to really sit n listen. It’s weirdly rewarding to see someone walk out lighter, not just 'coz their toothache's gone but coz they felt seen during the whole thing. A lot of ppl come in scared or just unsure, and I honestly take that seriously. I keep the vibe calm. Try to read their mood, don’t rush. I always tell myself—every smile’s got a story, even the broken ones. My thing is: comfort first, then precision. I want the outcome to last, not just look good for a week. Not tryna claim perfection or magic solutions—just consistent, clear, hands-on care where patients feel heard. I think dentistry should *fit* the person, not push them into a box. That's kinda been my philosophy from day one. And yeah, maybe sometimes I overexplain or spend a bit too long checking alignment again but hey, if it means someone eats pain-free or finally smiles wide in pics again? Worth it. Every time.
6 hours ago
5

Hello,

🛑Your symptoms are most likely due to how high-dose vitamin D shifted your mineral balance: it raised your calcium and lowered your magnesium, which can make nerves unusually excitable and cause burning sensations, anxiety, feeling on edge, and a fast heartbeat.

These symptoms improved within days of stopping vitamin D strongly supports this.

🛑Meanwhile, your very low iron (despite normal hemoglobin) can explain your remaining issues such as lightheadedness, cold sensitivity, and a rapid heart rate.

Overall, the initial nerve hypersensitivity fits best with the vitamin-D-related calcium/magnesium changes, while your ongoing symptoms align with iron deficiency.

Ok now check please 🛑🛑🛑 Full iron studies (you already have some) but also ferritin Magnesium RBC (more reflective than serum) Calcium, PTH, vitamin D recheck after stopping supplements Consider whether vitamin D dose was too high for your physiology

🛑🛑🛑 Ensure adequate dietary magnesium (nuts, seeds, beans, leafy greens) Avoid high-dose vitamin D until labs are re-evaluated Treat iron deficiency if your doctor confirms it -symptoms often improve within

I trust this helps dear Feel free to reach out again Thank you

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Dr. Nirav Jain
I am a qualified medical doctor with MBBS and DNB Diploma in Family Medicine from NBEMS, and my work has always been centered on treating patients in a complete, not just symptom based way. During my DNB training I rotated through almost every core department—Internal medicine, Pediatrics, Obstetrics & Gynecology, Surgery, Orthopedics, ENT, Dermatology, Psychiatry, Emergency medicine. That mix gave me the skill to manage acute illness, long term disease and preventive care together, something I find very important in family practice. In psychiatry I worked closely with patients who struggled with depression, anxiety, stress related problems, insomnia or substance use. I learned not just about medication but also about simple psychotherapy tools, psycho education and how to talk openly without judgement. I still use that exp in family medicine, specially when chronic disease patients also face mental health issues. My time in General surgery included assisting in minor and major procedures, managing wounds, abscess, sutures and emergencies. While I am not a surgeon, this gave me confidence to recognize surgical cases early, provide first line care and refer fast when needed, which makes a big difference in online or OPD settings. Now I work as a consultant in General medicine and Family practice, with focus on both in-person and online consultation. I treat conditions like fever, infections, gastrointestinal complaints, respiratory illness, and also manage diabetes, hypertension, thyroid disorders, and lifestyle related chronic diseases. I see women for PCOS, contraception counseling, menstrual health, and children for common pediatric issues. I also dedicate time to preventive health, lifestyle counseling and diet-sleep-exercise advice, since these small changes affect long term wellness more than we often realize. My key skills include holistic diagnosis, evidence based treatment, chronic disease management, mental health support, preventive medicine and telemedicine communiation. At the center of all this is one thing—patients should feel heard, safe, and guided with care that is both professional and personal.
33 minutes ago
5

Hi Mirka, your symptoms are most likely from a combination of low magnesium and low iron, both of which can worsen after taking high-dose Vitamin D.

Vitamin D increases calcium and uses up magnesium, which can cause burning/tingling, anxiety, fast heartbeat and cold sensations. Your very low iron levels also add to lightheadedness, cold intolerance and nerve sensitivity.

Next, what should you do is, get a physical consultation done with your nearest Physician, and he/she will prescribe you iron and magnesium supplements according to your requirement. Don’t rely on online consultation for this specific issue.

Feel free to reach out again.

Regards, Dr. Nirav Jain MBBS, DNB D.Fam.Med

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