Ok for the past 2 weeks when its leg day i go from squats straight to leg press. Then i go through 3 working sets and get to my last set and for some reason when i get to those last couple reps where i really have too push and struggle to get the sled up i get this pain in the neck then it shoots right into my head and when it happens i have almost passed out both times. Its sorta scaring me cause it only happens when i do leg press. I dont know if anyone has experienced this before but any input on this would help. Its never happened when Ive done any other leg exercise just leg press, I think I might have pinched a nerve but Im not for sure. any help on this would be appreciated