Hello, I'm a 20 year old male and about 2 weeks ago I had unprotected sex with a female. About a week ago I developed a sore throat and then got cold-like symptoms (a stuffy nose and a slight "itchy" cough). The problem is I still have a sore throat, it becomes much more prevalent towards the evening/night, and is the worst when I wake up. It currently is centralized on the left side of my throat for some reason. I also seemed to have a white coating on the roof of my mouth upon waking up this past morning.
I would like to also bring up that a very small, shiny red bump (it was rather flat) appeared on the top of my joint on my thumb shortly after having the unprotected sex. I ended up scratching off the top layer which revealed a sort of red indent (no bleeding). It has since scabbed over but has still not healed completely (this was two weeks ago).
Should I be concerned about this ongoing sore throat, and the random mark on my thumb? Or am I just overanalyzing and freaking myself out?
I will note that I have had no other symptoms that are STD related. I have had no fever, or any rashes or anything like that.
Thanks in advance for any input or help!