I have been experiencing sharp sensation in my penis is for 5 months now. What should I do?

I had gonorehea and i treated it with antibiotics but after the treatment i have been expericing a sharp sensation in my penis which has gone on for 6 months now.i also feel a little itch on top of my penis head. i have done culture and blood test but it always come out as negative. what should i do?

The only medical specialist that can help you is a Urologist

Thank you and I appreciate your reply!