so can venous leakage develop in the absence of trauma and with perfect erections in the past?

my erections were perfect until May, never had this type of problem

Hi, I'm 18 years old and I would like clarification regarding the situation that is affecting me. My story begins in May, my ejaculations were painful, as if it were burning (I masturbated for a long time in the following way: I masturbated until I reached orgasm but I didn't ejaculate immediately) ...