A female escort sucked my penis for a few minutes. I had a lot of symptoms and my condition was generally bad. I did a 4th generation hiv1/2 and p24 antigen test 29 days after exposure and another one 43 days after exposure . Both were non-reactive. Both tests came back 0.25. What concerns me is why did the test result come back the same 0.25? Should I still worry and do other tests or am I ok?