i made the biggest mistake in my life. i had sex with a sex worker without using protection. I was drunk and I couldn't control myself. but I remembered it lasts only few seconds. after this possible exposure I made an ELISA test after 8 weeks, the result was negative, and again i made a test after two weeks, which is after 10 weeks from the exposure. Thanks to God the result is negative. this happens before 6 months but these days I have a white patches in my lower lip inside my mouth, it come and go, i got it at the morning and its gone after a day, and come after 2 or 3 days, it looks white and it can not be removed. since I had that possible exposure I am still worrying of false negative but I am so affraid to go and test. So do you think this patches are related to HIV or I am just worrying, and what about 10 weeks hiv negative, can I rely on this?