4 weeks ago i had oral sex with protection but at the last part she said she could not go on so i finished myself and noticed that the condom broke, well later i had a terrible flu not just symptoms of flu i had the flu! later on the flu continued for like two weeks(because i did not take care of my self), i usually mastrubate a lot and do not pee after mastrubate, well two weeks after this happend i felt pain in my penis as if somebody hit it and a slight redness on the tip went to the doctor and told me that i had nothing wrong, no pain when urination nothing. Four weeks had passed by and i started to read about hiv and got really scared i dont know if its the anxiety or something but had no headaches, almost no diarrhea but it would cost alot for me to go to the bathroom and poop, well i started to check myself and i saw a purple grayish color inside of my urethra and no pain when i pee , but then i touched it and it did hurt to pee. had no fever, had sometouble sleeping last night i think it was becuase of what i found. have any idea what it is?