Mar 17, 2009 #1 G Goodeal New member Joined Aug 14, 2008 Messages 9 Reaction score 0 Points 1 I was doing sit ups and when I stood up, I felt a big cramp in my stomach. Why? Sources? I have a doctors appointment tomorrow, I'm just curious about it now.
I was doing sit ups and when I stood up, I felt a big cramp in my stomach. Why? Sources? I have a doctors appointment tomorrow, I'm just curious about it now.