Can't keep up

I'm exhausted. I've been to gigs for the last 3 days with only 5 hours of sleep. And now I'm suffering from muscle pains, joint aches, back pains, blisters and feet aches. And supposed to be I'm leaving for Bohol today for another 3-day gig. But I refused to go and just came up with excuses. My body can't keep up with these obligations. My mind mind is telling me to push myself to the limits, but my body is backing up. The only thing inside my mind right now is to get myself some rest and sleep for at least a whole day . . . I'll be back as soon as I regain my energy.