so yesterday I woke up at 6 in the morning for no reason, I was only asleep for 4 hours so it made me pretty angry. So I get up pissed, end up going to the gym around 9, do HIIT for 20 minutes no problem and do the most intense delt/trap workout I think I've ever done. I just had so much energy, I did an extra 7 sets just for delts and was drop setting every set with db shrugs. I just dont understand, but I think I got away with it because I'm so young. 18 can have its advantages. Anybody else ever done something like this?