I masturbate from the past 2 years. With a vibrator on the clitoris or urethra only. No vaginal stimulation I am experiencing abdominal cramps. EVen I hav a undergone an operation for the removal of blockage of ureter. IT also pains there. Can my over masturbation with the vibrator lead to brain death or damage and kidney failure? Plss answer as I cannot discuss with any body. My sonography (recent) is normal.