about 3 months ago i had protected sex with a sex worker everything was safe condom was on i didnt even ejaculate after a week or so i started having this burning sensation on the tip of my urethra but it never burned when i peed i week later i went to my doctor got a urine test everything came back negative then i went to the er a week after that and stds results came back negative this was during a 3 week period.. when i went to see the urologist on week 4 he told me im clean nothing is wrong with me. but recently 3 months later my urethra is starting to bother me now.. it doesnt burn when i pee but clear discharge comes out once in a while for no reason.. i also masturbate 2 to 3 times a day so i dunno if its that or not..