I have been masturbating excessively for about 15years. Im 28 now. I used to masturbate up to 7 times a day. Sometimes i d do it till it hurt. 2 years ago i started having back and abdominal pains. But they came and went. I recently stopped and haven t done it in about 5 weeks. Now the pain is constantly there. I have dark and foamy urine and need to constantly go to the can. These are all signs of kidney problems. Now im even afraid to go get tested because of what they will tell me. But im pretty sure its due to the excessive masturbation over the years.