I started masturbation at the age of 14 and currently I 29. I have the following symptoms lack of sexual urge lack of morning erection lack of penile sensation during love making loss of erection during love making erection goes away once I have seminal fluid sexual weakness body vibration and twitching can all these be as a result of masturbation? What can I do to heal myself from all these. I am writing from nigeria, I need help. I have done all the test and my testosterone level is normal, my thyroid is ok, and my vitamin d is ok.