Hello, I can very well understand your concern for HIV infection after the unprotected intercourse. In your query you have stated that you are experiencing sore throat, mouth ulcer and sickness. In Acute Retroviral Syndrome it takes almost 5-6 weeks for the symptoms to appear. The most significant of the thing fever of high grade. It is the most commonly encountered problem. So you just confirm whether your temperature is above 102 F. I commonly confer with patient of your type and getting frightened and therefore correlating one of the other symptoms to ARS. But actually speaking these are due to acute panic created due to fear of HIV. As you have gone for DNA PCR test so relieve all your anxiety. For any further information you can ask me directly at: bit.ly/drsanjaykanodia All the best.