After I pee in the morning, I get strong menstural type cramps, that last about 20 minutes. This can happen 2 weeks up until my period starts. BUT....if I sit up for 7 minutes BEFORE peeing, then pee after those 7 minutes, I don't get any of those cramps. What could be causing this? It also happens when sleeping, if I wake up with an orgams, I get instant HORRIBLE cramps that last about a half hour or so...........most painful thing ever.