Respectd sir,I find my penis size around 4 inches during errection. my glance is coverd by prepuce but retracts during masturbation..I masturbate twice a week. now I find my erection deteriorating since one yr..i will be getting married in a month or two. is my penis size normal satisfied sexual life..how to increase the size. do I need to  remove my prepuce..foods I need for improving sexual health n stronger errection.Does  the size increasing devices available in market work..suggest if any..I also find my testicles little fatty..5yrs back I had a hydrocele operation on both testicles...