When im working out, exerting force, like dumbell pressing or whatever, i get this real bad headache all of a sudden, it pounds with pain and i can barely finish the remaining reps for the set. Someone also has the same problem but he was recommended water i think, but i drink a lot of water during teh day. So it may be my sleep, but i get 8-10 hours of sleep a day. However i sleep at like 1-2 am and wake at 10 or 11? Is the late hours my problem?