Hello
Your symptoms most often fit a combination of post-infectious gut sensitivity + dehydration + anxiety-related nervous system overactivation.
That can cause painful “false hunger,” abdominal pain after eating, fatigue, dizziness, and feeling cold — especially if you drink very little.
Most likely not dangerous given: Normal blood tests No vomiting, bleeding, or night pain You remain conscious and functional
But you should seek medical review if symptoms worsen or don’t improve with hydration and nutrition support.
What will help most 1. Hydration is priority Aim ~1.5–2 L/day minimum Small, frequent sips if full easily Oral rehydration solution or lightly salted soups help
2. Gentle eating pattern Small meals every 3–4 hours Soft, easy foods (rice, bananas, yogurt, eggs, soups) Avoid long fasting periods
3. Calm stomach–nervous system loop Slow breathing before meals Eat slowly in a relaxed setting Light daily walking
4. Medical checks worth doing Vitamin B12 Iron/ferritin Electrolytes Weight monitoring
Seek urgent care if
You cannot keep fluids down Fainting or confusion Persistent severe abdominal pain Blood in stool Rapid weight loss
I trust this helps Thank you Take care
Hello I’m really sorry you’re dealing with this — what you describe sounds exhausting and distressing. I’ll break this down clearly and calmly.
First, based on what you’ve written, there are no obvious emergency red flags (no bleeding, no vomiting, no nighttime pain waking you up, normal blood tests, negative H. pylori). That’s reassuring.
What This Pattern Most Likely Suggests
From your description, this combination strongly suggests:
1️⃣ Post-infectious functional GI disorder
After gastroenteritis, some people develop:
Gastric hypersensitivity
Altered gut–brain signaling
Visceral pain with normal tests
Poor appetite but exaggerated hunger sensations
This overlaps with:
Post-infectious functional dyspepsia
A form of IBS
Gut–brain axis dysregulation
Autonomic nervous system dysregulation
Your symptoms of:
Fatigue
Heavy legs
Dizziness
Drowsiness
Sensitivity to cold
Reduced thirst perception
Slightly elevated hematocrit (suggesting mild dehydration)
All point toward mild chronic dehydration + autonomic imbalance.
Drinking only 0.5–1 L/day is low, especially if you’re symptomatic. Even mild dehydration can cause:
Fatigue
Orthostatic symptoms
Cold sensitivity
Malaise
Brain fog
Increased gut sensitivity
And dehydration makes gastric pain worse.
Hydration is priority #1
You likely need: 1.5–2 liters/day minimum
But increase gradually:
Add 250 mL every 2–3 days
Use electrolyte solution (oral rehydration salts or lightly salted water)
Drink small amounts every 1–2 hours
Don’t wait for thirst
This alone may significantly reduce:
Fatigue
Cold sensitivity
Heavy legs
Dizziness
Evening crashes
2️⃣ Eat small, frequent, gentle meals
Instead of 3 meals:
5–6 small portions
Soft foods
Warm foods
Moderate protein
Low fat at night
Avoid long fasting gaps
An empty stomach worsens hypersensitive pain.
3️⃣ Calm the nervous system daily
Your symptoms strongly suggest sympathetic overactivation.
Helpful:
Slow breathing (4–6 breathing) 10 min twice daily
Gentle walking after meals
Avoid long periods lying down during the day
Regular sleep schedule
The gut and autonomic nervous system recover slowly — often over months.
4️⃣ Check a few additional labs (not urgent, but reasonable)
You might ask your doctor about:
B12
Ferritin
Vitamin D
Electrolytes
Thyroid function
Low B12 or iron can worsen fatigue and dizziness.
What This Is NOT Likely To Be
Based on your description, it does not strongly suggest:
Cancer
Severe inflammatory bowel disease
Acute ulcer
Obstruction
Neurological disorder
The pattern is too fluctuating and linked to hydration, hunger, and fatigue.
The Most Important Insight
Your system seems stuck in a loop:
Gastroenteritis → anxiety → diet change → under-eating + dehydration → hypersensitive stomach → painful hunger → more anxiety → more nervous activation
That loop can sustain symptoms for months — but it is reversible.
Timeline for Recovery
Post-infectious gut hypersensitivity often improves over:
3–6 months
Sometimes up to 12 months
But hydration + nutritional stabilization can improve things within weeks.
Thank you
It sounds like your symptoms could be related to a combination of factors, such as inadequate hydration, possible dietary deficiencies, and maybe lingering effects from the gastroenteritis or anxiety episodes. Firstly, your elevated hematocrit along with low fluid intake suggests dehydration, which can cause fatigue, dizziness, and that heavy feeling in the legs. Increasing your daily water intake gradually to about 1.5-2 liters could provide significant relief. This hydration might alleviate some malaise and dizziness. Additionally, the intense hunger followed by fatigue could potentially be related to your dietary changes. Ensure your diet has an ample supply of complex carbohydrates, protein, and healthy fats to maintain stable blood sugar levels. Eating small, frequent meals might help stabilise the energy fluctuations and reduce the symptoms after meals.
Given your symptoms and the mention of B12 not being measured, it could be worthwhile to request this specific test from your healthcare provider, as a B12 deficiency might contribute to fatigue, malaise or neurological symptoms. Though it’s promising that your blood tests are generally normal and Helicobacter pylori is negative, the persistent nature of your symptoms does warrant further investigation. If symptoms persist or worsen, consider exploring other potential digestive issues or endocrine dysfunctions like thyroid problems. However, because you’re experiencing significant discomfort, it may be helpful to consult with a healthcare provider to discuss ongoing management or to explore other underlying causes. They may recommend referral to a gastroenterologist for more specialized assessment, particularly if symptoms remain unresolved despite initial intervention.
Your symptoms may be related to dehydration (very low water intake), post-infection gut sensitivity, low blood sugar episodes, anxiety, or possible vitamin deficiencies (like B12) — especially since tests are mostly normal and symptoms worsen with hunger and fatigue. Increase fluids to about 2–3 liters/day (unless medically restricted), eat small frequent balanced meals with protein and complex carbs, manage stress, and get tests for B12, blood sugar, and electrolytes. You should consult a Gastroenterology specialist or Internal Medicine doctor for full evaluation, and seek urgent care if symptoms worsen, fainting occurs, or severe weakness develops.
your symptoms started after gastroenteritis and anxiety, and your tests are mostly normal, which makes a serious or dangerous illness unlikely. The pattern of painful hunger, fatigue, dizziness, heavy legs, and drowsiness that worsens with dehydration strongly suggests a functional digestive and metabolic imbalance rather than a severe disease. After intestinal infections, some people develop temporary gut sensitivity or disorders such as Gastritis, Reactive hypoglycemia, or Irritable Bowel Syndrome, which can cause abnormal hunger signals, weakness, and mucus in stool. Drinking only 0.5–1 liter of water daily can also lead to dehydration, dizziness, fatigue, and a slightly high hematocrit. Try increasing fluids to 2–3 liters per day, eat small frequent balanced meals with protein and fiber, avoid long gaps without food, reduce caffeine, manage stress/anxiety, and check vitamin B12 and iron levels. If symptoms persist, worsen, or you develop weight loss, severe pain, or ongoing diarrhea, consult a doctor. In conclusion, your symptoms are most likely functional and reversible, and improving hydration, nutrition, and gut recovery should gradually make you feel better.
