Talk to Urologist on UTI

hi doctors, i have personal question. i am facing a problem since almost two years. i have frequent urination. some time i feel burden below waste. i have pain in ejaculation sometime . i am not married. some time urination cause two stream but its not often but i have slight pain at the edge of urethra while urination. i have been treating this problem from general doctor who used anti bio tics, cranmax sachet , may urine report is almost ok with 2-3 pus cells, abdominal altra sound is fine. every test seems fine but i have have this problem. i feel weakness in bladder. after ejaculation i feel weakness and pain. some doctor say its just infection. currently i visited doctor he said its gonorrhea symptoms. can you guys suggest any medicine test or relevant doctor in lahore so i can change my doctor i shall be very thank full.