I lately I've been getting really bad pain in my stomach. Mostly when i'm cantering. Its not a side ache. The pain is hard to describe its pretty unique. Imagine really bad cramps, with gas pains (that never umm relieve themselves) and a side ache with a little nausea. The pain feels like its inside my gut not out side in the muscle. It been getting so bad that I can only do one or two barrel runs before I have to stop and walk. I don't think its because I'm tense and I've tried take deep breathes because I do sometimes hold my breathe with I run but nothing seems to help. Does anyone else get this? Any ideas on what it might be?