Perod like cramps while exercising? Not on period?

Hey guys, For the last week this has been happening. When I exercise, out of no where I get a menstrual like cramp in my uterus and I have to stop and breathe. It seriously feels like a full blown period cramp. I also start to feel very nauseas sometimes. I don’t know what could be the cause? I haven’t done... show more Hey guys,
For the last week this has been happening. When I exercise, out of no where I get a menstrual like cramp in my uterus and I have to stop and breathe. It seriously feels like a full blown period cramp. I also start to feel very nauseas sometimes.
I don’t know what could be the cause? I haven’t done anything different apart from changing up exercise. I take a fat burner before exercise but I’ve never had this issue with it.
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