My body hasn't been forgiving lately- back is aching, hormones raging, head swinging, joints feel like they're dismantling. 23 but I feel like 32

Last night was a mere stay up from 4 a.m to the next 3 a.m. and here I am staring at the keyboard for the past 10 mins for nothing. Maybe I should start to exercise. But what exercise?

I would rather be sleeping.