Hi the problem I have is that i sometimes have a very mild burning pain in the end of my penis after ejaculation or urinating. Its not always there but even when it doesnt hurt i kinda feel like something is wrong. There is no swelling or redness and nothing visibly wrong. It is a very mild pain although in the shower the other day i did squeeze my penis and the pain was sharper and more intense for about 20/30 seconds. Im confident its not an STD as ive not had sex for 18 months and even then i used protection. I do masturbate a lot often 3/4times a day is this to excessive?? I am currently taking glucosamine sulphte tablets so i dont know if it could be sugar related? ive been taking them for 2 weeks but honestly cant remember if this is when my discomfort started. Is this something i should be worried about or will it go away???? Any advice would be very much appreciated as my mind tends to work overtime on these things!