ARS symptoms 15 months ago which I didn't worry about but now I do

[Pizarro_24]

I am a male who had a protected vaginal sex with a girl 15 months ago, unprotected oral (blowjob), and open mouth kissing. 1 week after the possible exposure, I got ill; had a fever, fatigue, and developed something in my mouth that looks like oral candidiasis (dark red gum and very difficult to swallow), it was the first time ever I experience such a horrible thing in my mouth and it lasted for about a week or less and then it disappeared. These are the 2 major symptoms I remember having after the possible exposure. I even remember going to the dentist 2 weeks later and they told me that my gum requires a lot of cleansing, they did the job and it became pink again. I didn't even think about the exposure or symptoms back then and felt generally fine. However, 15 months later, I did a general blood test, I found out that the CRP was elevated, I freaked out and saw another physician who recommended to return the test, I returned it and CRP went back to normal (0.5 mg/L). However, since then I've been thinking about that exposure, oral candidiasis worries me the most as it's a sign of HIV infection. I think that according to statistics, it's unlikely for me that I got HIV but why did I get the above mentioned symptoms? and can ARS symptoms appear after 1 week of the possible exposure?

Note that I've been feeling generally fatigued in the last few months, I also get a night sweat every now and then and that's why I decided to do general blood tests which turned out to be alright (although WBC were in normal range but slightly lean towards lower end) but I've been freaking out about HIV in the last 2 weeks or so, especially when I remember the symptoms I had back then.

Please help.

[AnxiousNoMore]

You had no risk and a test will be a waste of time. You can't get HIV when you used a condom.
HIV is instantly inactivated in air and also in saliva which means it is effectively dead so it can't infect from touching, external rubbing or oral activities. It doesn't matter if you and they were actively bleeding or had cuts at the time either because the HIV is effectively dead.
Only adult risks are the following:
1. unprotected penetrating vaginal
2. unprotected penetrating anal sex
3. sharing needles that you inject with. Your situation is a long way from any of these 3.
Even with blood, lactation, cuts, rashes, burns, etc the air or the saliva does not allow inactivated virus to infect from touching, external rubbing or oral activities. The above HIV science is 40 years old and very well established so there is no detail that you can add that will make any of your encounter a risk for HIV.  No one in 40 years of HIV history got HIV from the situation you are concerned about so it is unlikely that it will happen in the next 40 of your lifetime either.
It is unscientific to think you have a disease then see symptoms of that disease and conclude you have the disease, when you had no exposure.