Anxiety over transsexual encounter

Hi Guys,
Around 1 month back I met a transsexual escort, this was my first time with one. We just did some deep kissing, and she performed some oral sex on me(not for very long). I tried a little oral with her but I withdrew after basically one second because I hated it. I did put my penis around the anal area but no penetration and I did a little rimming in that area. But I ended up hating the experience, that lasted no longer that 15 minutes. There was no semen exchanged.

Around 2 and a half weeks later I developed a flu. A few stomach cramps, a dry cough and a little fever. It has taken me almost two weeks to recover and I still have some coughing and have over usual fatigue. I am worried sick I may have contracted HIV through saliva or maybe some residue(there was none physically there) fecal matter due to my exposure to the anal area(which was completely clean, however).

All my other sexual encounters( Im 20) have been with one girlfriend at my college (who cannot be infected) and a few one night stands, I have never had any gay sex.

The escort said she was completely clean, but there is nothing to back that up and I'm not sure I believe her.

Is there any chance I have HIV? What are the odds?

[Teak]

You never had an exposure to HIV.