Yes, the week 8 test is a very good indicator of your status. It would be very unusual that someone would test negative at week 8 and positive at week 12.
You might also consider a second hepatitis screening test at week 12 along with the last HIV screening test. Like HIV, hepatitis screening tests will often check for antibodies connected to these viral based diseases.
Again the obvious...hand jobs do not transmit HIV.
Let's say that you engaged in a risky behavior last summer; for example, unprotected anal intercourse with a partner who was HIV positive. And become infected. ARS (the first stage of HIV) occurs two to six weeks after transmission. Not months later.
Whatever is causing your temperature to rise for an hour or so (and it may be nothing more than stress) has absolutely nothing to do with HIV.
The information you received regarding the rapid oral test is inaccurate.
Up to 95 percent of newly infected folks will have a reactive (i.e., positive) test result at 1 month post exposure. By 3 months (90 days) this has increased to 99.99 percent. At 7 weeks the stats fall somewhere in between these two.
Thus, the odds are very much in your favor that you are HIV negative.
ARS (the first stage of HIV) is described as "flu like" in nature, occurs two to six weeks after transmission and lasts about two weeks. It doesn't last the five weeks you are describing and it doesn't include a BV infection which is bacteria in nature (keep in mind this infection can cause at least some of the symptoms you are experiencing).
It is likely at least some of your anxiety and inability to sleep at night is contributing to some of your symptoms. Perhaps the knowledge regarding the above statistics will help ease your concerns.
Your next (and final) step is a further test at 3 months.
No further testing is needed. You can ignore the incident and get on with your life. You are HIV negative.
Those who would need to test out to six months would be someone whose immune system had already been damaged by other serious medical issues such as chemotherapy or someone who had received an organ transplant and is on immune suppressing medication. Folks who fall into those categories may have immune systems that are slower at developing antibodies to the virus.
Your immune system is perfectly normal. IF this event had left you infected your test results would clearly have come back as reactive. They didn't; thus you do not have the virus in your body. You are HIV negative.
You're not a long term non progressor. You're HIV negative. You don't have the virus; never did. You need to stop worrying about all of this or consider some professional counseling to help you with this concern over sexual contacts that took place almost two decades ago.