2 negatives but suffering symptoms

[calfinn1999]

Dear All,
Please offer me some guidance, I had an encounter with a sex worker (female) on August 1st 2013, 2 weeks later I developed prickly heat sensation in the groin area. I then developed a white coating on my tongue. I attended an NHS clinic in London and had the 4th generation duo test six weeks after exposure, it was negative. I have had no other sexual activity since this incident and have returned to the NHS clinic for a further 4th generation duo test after three months from exposure, this test was again negative. My sporadic prickly heat (intense burning) and rash to parts of my body and white tongue still persist.
My question is: are my symptoms possibly caused by HIV
are my two tests conclusive?

[Teak]

You had protected sex, still no risk.

[calfinn1999]

we also had penetration with condom

[Teak]

You never had an exposure from oral sex, broken tooth or not.

[calfinn1999]

it was oral sex, me on her with an eastern European sex worker, i had a very broken tooth at the time. 4 weeks after encounter I worried so much, didn't sleep for around a week, lost 10 kilos in weight, had diarrhea and bruised easily so then went for the 4th gen duo test

[Vance2335]

Test is conclusive, symptom never had anything to do with HIV.

What was your encounter?