ok i know this is a little wierd but im having a problem. whenever i jump, or make sudden hard movements with my legs, well.. how do I explain this. you know where your testicles come out of your body, right there tightens up so hard that it feels like its cutting the strings?(heh) that hang my testicles, off! like that muscle you use to stop pissing. Im on fina right now, i get no painful pumps anywhere else.