hi..my age is now 26..........i am doing masterbation from about 15 year...i have never done sex with girl...but it donot mean i not enjoy it ..but i have not got chance with any girl...and some time due to religious......but i like to sex with girl.....now i feel that when ever i do masterbation i have stomach problem...their made a lot of gas in my stomach...and once their out some blood from my penis.....and some time light water came from my penis.........when i stop masterbation for 1 or 2 months so my stomach is good and i feel tied from my penis and feel very well...................................i donot khow what happen to me........any one experite can help me please