Welcome to the forum. Thanks for your question. You had accurate replies on the HIV community forum, so my replies are brief.
In the United States, under 1% (1 in 100) commercial sex workers has HIV -- and in most areas it's under 1 in 1,000. But even if she had it, you were not at risk. HIV cannot be transmitted by the kinds of contact you had with her. And new HIV infections do not cause itchy red bumps or cold symptoms (sneezing, sniffles, cough, etc). Neither do other STDs.