she was hard with hand on my penis while i was ejaculating

while having sex with my partner who was a prostitute she held my penis very tight when i took it out of her vagina just when i was about to ejaculate she vibrated it with to and fro movements wildly and that time i felt extremly pain as some damage has been occur to the tube carrying semen it has been six months to this incidence, as i use to masterbate regularly i have noticed the excretion of lubricating fluid from my penis often without getting sexually aroused and pain in the tube at a certain point if i press my finger on tube i can feel injury  im worried is this a serious problem and how it can be cured.

seeking ur guidance.