I am 22 years old able bodied fully functional male. Since puberty, I have never voluntarily successfully masturbated once (even with screen material). Once or twice in a month, after weird dreams, I would experience nightfall and normally densed ejacuation. Since last few months, nightfalls have stopped and I neither masturbate. Whenever I try, my genitals never get fully erect with the highest length reached so far being less than 2.5 inches and foreskin not showing. My last nightfall was vary watery ejacuation and once I had problem peeing as well. I am completely virgin and don't get too much physically exited with a girl's physical contact as well. However, at the same time I have openly pondered about being gay or something else and that isn't absolutely the case as well. Is it normal or my testosterone levels are less than normal or am I prone to premature ejacuation/infertility?