I have been having receptive anal sex with a guy for a few months now. I am on Prep and we don’t always use a condom. He is very large & thick and it takes time & patience when he tops me. This last time I was fine (just a little sore) for a day or two after and thought I may be finally getting used to his size. On the 4th day I was in pain. It hurt to move my bowels, my anus is swollen and very sore, no bleeding that I’ve noticed and had a couple of days of feeling like I had to go constantly, groin feels sore as well. It looks like most STIs take a few weeks to show symptoms if at all. I am only coming up on a week. I’m due for my 90 day STI/HIV testing in January. Just wondering if I should wait it out or go ahead and test now.