You quote extremely low probability of 0.04% for receptive oral sex.On what basis is this calculation?
The reason I ask is that I had oral sex with a prostitute now 17 days ago whilst on a business trip to asia (yes very stupid) and although it did not last long ,was just gentle licking (not mouth over the tip), there were no skin breaks, of course if she is HIV + and had ulcers or a cut in the mouth/bleeding gums (she had a brace) etc. then how would this effect the odds that you quote? Many other HIV websites make this sound like a very real risk. In addition I did have a brief flu like cold for a couple of days a week after returning, which may have been due to returning home from a hot climate and the rest of the family were suffering, but again this is mentioned on other websites this sounds like the first symptoms of HIV after 1 week.
I am in the process of waiting std checks taken at 10days after incident (swabs and blood), I had discomfort immediately after the oral and got antibiotics the very next day upon my return for what I thought was a water infection though it has not progressed into anything other than feeling a bit like what you get with Thrush , otherwise looks compeletely normal.

I have a HIV DUO test booked 23/12 (28days from incident) , however just consumed with sick worry and more I read up, the more I fear the worst.Every bodily ache is not multiplied 10X's in my mind.

Welcome your considered opinion.