I am of 23. From last 5 years I was suffering from nightfall. Also I used to squeeze and rub my penis in sleep without knowing. Also my penis forehead skin is very tight. It don't pull back. I tried many times but it hurts a lot. Now from last one year I feel very low tightness and strength in my penis. Forehead becomes soft. What to do now? I am unmarried also. I never drink. Never smoke. Never took tear or coffee. Always took good green food and exercise but still facing this disease.