Drag - I go through this from time to time and like you worry about it being attributed to the same nasty diseases. However, it's much more likely you and I are itchy from stress and dry skin due to weather. The itch associated with diseases is intense. Like keep you up all night intense. Also - the itch from nasty things like PC comes from the built up of billirubin in your blood. If you had this you would be jaundice and yellow like a banana. Try some lotion. Don't take showers that are too hot and find ways to relax. I notice my itch gets better with consistently using lotion after showers and when I'm most distracted.