I have been masterbating for the last 4 years, and for the last 2 and half weeks, I have been masterbating almost every day. After masterbating for the last week, my bladder has gotten swollen and red. Also my tip of my penis has a sting when I pee. All of these symptoms disappear after about a day or two usually. Unit I masterbate again. Not sure what is wrong and what to do!