PSC/Itching/Physical Activity: My 17 yr old son is complaining of tingling and severe painful itching after physical activity related to sports. He says it's much worse than regular "crazy" itching that he normally has if he misses his meds. He has football camp coming up in a few weeks and is concerned that he may not be able to play because of this. He loves football so I am very concerned about the severity of this since I can't imagine him sitting out. He did not miss his meds and is very conscious about staying hydrated. Any thoughts on this whole body itching/pain that he says begins when he stops being physically active?