I have been feeling under the weather for weeks without major symptoms what is the reason

Based on the symptoms you’ve described—persistent fatigue without major symptoms, normal basic test results, and a general feeling of being unwell—there are a few possibilities to consider. First, while anxiety or mental health issues can indeed cause physical symptoms, feeling under the weather could also relate to other underlying issues that may not be immediately obvious in basic tests. One potential factor might be a low-grade infection or chronic inflammatory process. Even mild viral infections can linger and lead to prolonged fatigue. Another possibility is sleep disturbances such as sleep apnea, which can cause significant tiredness even if you’re getting enough hours in bed. Assess whether there’s been any change in your sleep patterns or quality recently. Thyroid disorders, particularly hypothyroidism, could also be a culprit, so ensure a thorough thyroid function test was included in your initial workup. Anemia and vitamin deficiencies, like vitamin D or B12, are also worth considering, as they can lead to persistent fatigue. Monitor any subtle changes in your body, like unexplained weight loss or gain, night sweats, or joint pain; these may offer additional diagnostic clues. If anxiety or stress is truly a significant factor, engaging in techniques like cognitive behavioral therapy or mindfulness can sometimes improve symptoms, but it’s important to explore all other possibilities first. Since you’re already taking steps with diet, don’t forget regular physical activity and good sleep hygiene, which can have a significant impact as well. You might benefit from a follow-up with your healthcare provider, focusing on these specific possibilities, or seeking a second opinion if you’re unsatisfied with the current explanations. If new or worsening symptoms develop, reevaluation should be prioritized to rule out more serious conditions.