wtf happened

I’ve been going to school and engaging in hobbies and stuff just fine for a while now and suddenly the past 3 days I’ve not been able to get out of bed for more than a few minutes at a time, have intense pain and soreness all over my body, and falling asleep for like a majority of the day? Like it normally fluctuates but not usually this much. Any ideas why this happens or how to feel better would be great