I started masturbating at the age of 12. Since then I masturbate on a regular basis, 1 - 2 times a week. Now I am suffering from masturbation addiction. Night fall occurs if I don't masturbate for 7 to 8 days. I cannot stop the urge to masturbate. Also I ejaculate very early. Sometimes sharp pain occurs at the tip of the penis. The size of the penis is smaller than average which makes me worried and sometimes it shrinks in the middle when not in erect state .Sometimes I masturbate in the middle of night while in deep sleep which I come to know about in the morning. I feel it also affected my mind as I am not able to concentrate much on anything. I get sexual thoughts all the time. Even at night during sleep I think about sex and unable to sleep unless I masturbate. I feel weak and depressed most of time.