[prohornblower]

Sounds like you worked out wayyyy too hard.

If you haven't worked out in years, you need to do like 2 LIGHT sets of each exercise. And I mean LIGHT. It should take you a good 2 weeks before you get to the point where you can do 3 pretty strenuous sets of each exercise.

I know, because this same thing happened to me when I was like 18. I went to visit a buddy and his friend in Alabama and they wanted to go hit the gym so I was all for it (had never really worked out regularly). Went there, tried to be macho and do everything they did. Next day = me walking around looking like Sup Bro, with the inability to extend my arms due to severe soreness.