I'm an active and fit person, but whenever I go for a run, later I typically get bad stomach cramps. Anything over 20 minutes or even more than 3 miles long is my threshold where I'll get a abdominal ache. My tempo tends to be 8-9 minute m…

I'm an active and fit person, but whenever I go for a run, later I typically get bad stomach cramps. Anything over 20 minutes or even more than 3 miles long is my threshold where I'll get a abdominal ache. My tempo tends to be 8-9 minute m…