About 7 weeks ago I had unprotected sex with a girl I didn't know. I was recently tested for every possible STD I could be tested for and they all came back negative. The two main STDs I was unable to get tested for was Herpes and HPV. The irregular symptoms I have been noticing since about 10 days after my encounter have been an ache in my testicles that comes and goes but is apparent enough that I am sort of worried since it has been a long time since my encounter and it hasn't gone away. I also notice that I have an itch/a raw feeling in my anus that also comes and goes like the ache in my balls. There is also a small red spot on my scrotum that has been there for about 6 weeks (it is flat) and another single small spot about 3 inches lower(looks almost like a raised brown freckle which could potentially be a wart). I also notice a pronounced vein on the opposite side of my penis from the two spots.
The questions I wanted to ask were: How can I know if these spots are genital warts/HPV? Does my aching testicles symptom match any possible STD or is it a symptom of HPV? And if I have never had any anal contact, could I potentially have anal warts or some other STD that could be causing this itching/raw feeling? (My anus has never been touched, penetrated, licked, or anything else) And finally, does this red flat spot on my scrotum that has been here for about 6 weeks (since about 7 days after exposure) signal any signs of STDS? My tests all came back negative so I am really only concerned about herpes and HPV but since I have no lesions or blisters or telling herpes symptoms I am really only left with either HPV or plain anxiety.
Thanks a ton in advance for helping out. (If you need any more info from me I would be happy to provide it)