Release21, I am sorry you are so stressed out about the encounter you recently had, it is understandable to be scared or nervous given the symptoms you are having. I will start off by saying that you are correct at the end when you say "symptoms start from about 2 days after intercourse". Most "symptoms" experienced in the first 24 hours after a sexual encounter are due to 1) friction or 2) allergic reaction (due to lubes, condom material, even just another person's skin dander). You were responsible enough to use protection, have been responsible enough to get tested in the past, and you have said you will get tested in the near future. Please do so. In the meantime, and until you get tested, avoid any harsh creams, soaps, or chemicals on your genitals.