Since July 2025, I have experienced progressively worsening weakness, fatigue, and difficulty concentrating. By October, I became unable to attend online classes properly. A senior physician evaluated me and found everything normal except low Vitamin D (16). After supplementation, it increased to 96, but I still feel extremely weak and unwell. I struggle to study for even one hour and sometimes feel an internal force stopping me from writing or completing tasks, despite being able to move normally. I can still watch movies and play games that don't cause that weakness. I previously went through a traumatic/depressed period; my sleep and mood have improved recently.