Ok I am asking this question for my training partner because I am starting to get worried about him.
Last Wednesday we were working out and during his widowmaker on squats he got a excrutiating headache. He said it was really sudden and painful. I figured he just stressed to hard getting the 20 reps so I thought nothing of it. Well he said that when his heart-rate has been rising the headaches have been coming back and today during our workout he couldn't do much of anything due to these sharp headaches. Has anyone had this happen or know what it could be?