L lew1 New member Feb 14, 2011 #1 So I ran the 400m indoor yesterday and after the race I had a pounding headache and was seeing stars. This seem to only happen in long sprints like 400-600m. Does anyone know why this occurs?
So I ran the 400m indoor yesterday and after the race I had a pounding headache and was seeing stars. This seem to only happen in long sprints like 400-600m. Does anyone know why this occurs?
