I am experiencing frequent mood fluctuations and get anxious easily. Recently, I have gained a lot of weight despite no changes in my food habits, and my thyroid test is normal. I often feel very sad, have no enthusiasm for anything, and feel like giving up easily. My sleeping patterns have changed drastically, I either sleep too much or very little. What could be causing this, and what should I do?

Answered by 1 Apollo Doctors

Dr Yusuf Mohammad

General Practitioner

MBBS
Advanced Certificate Course in Dermatology
8+ Yrs

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Sudden mood swings and weight gain with normal thyroid could be hormonal. Test for Vitamin D, B12, cortisol. Consider mental health support.

Dr. Yusuf Suggests...

Take a 25-HYDROXY VITAMIN D (D2+D3) Test or Take a VITAMIN B12 Test

Book 25-HYDROXY VITAMIN D (D2+D3) Test Book VITAMIN B12 Test

Answered 17/09/2025

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