That all happened 1 month after my anal fistula surgery, i had problem urinating, and i just finished my course of levofloxacin urinating problem is %90 gone now but i've developed a pain in my urethra that i didn't have what could be the cause?

Did a urine culture& colony count document the presence of a urinary tract infection? If so, was a follow-up urine culture done& was it negative? If so, your urethral discomfort could be from a nonbacterial urethritis or a prostatitis. Consult a urologist for evaluation & treatment if urethral pain persists. Appropriate testing will be ordered

Anal pain/surgery can affect urination as the sensory nerves are related. Try sitz baths and Ibuprfen for afew days . if not better see a Urologist