greetings it started after i had intercourse with a women in January at night the next morning I started to feel lil burning at tip of penis it comes off and on its not happening all day maybe like 5 seconds a day and it lil burn at tip i got tested for everything and all the tests came out negative there was few abnormal in Pee test but that was it i did not have swab test but nurse said it probblily change out negative as well the doctor gave me phenazopyridine use to stop pain urinary tract which i notice have help burning at tip of penis was not burning when taking medicine is there any more tests or anything for me to do help stop this problem or get antibodies