Possible HIV/STD symptoms?

[Liam225]

About 3.5 weeks ago (24 days), I had sex with a commercial sex worker. I have had no previous history of any STI/STD.  I received unprotected oral sex and during the vaginal intercourse the condom came off a few times (had to replace), and I think there may have been a point where my penis was inside uncovered.  Since then I have been extremely paranoid and suffering guilt/anxiety.  Two weeks after the encounter, I developed a headache with chills/night sweats (that lasted one night) and diarrhea (yellow mucus) lasting a week.  There was a bug going around my colleagues with the same exact symptoms so hopefully I had what they did. I am also in a foreign country and may have been suffering from Traveler's Diarrhea/food poisoning. After feeling normal again (about three weeks after the encounter), I masturbated, went on a run, and sat in a dry sauna for 15 minutes.  When in the shower I noticed a faint light splotch on the tip of my penis (very difficult to see, painless, no itch).  After a couple days it went away.  A few days later I masturbated again and when in the shower, I noticed a small patch of red bumps on the front tip of my penis (no itch/pain).  These also went away the next day.  I think it may be irritation due to masturbating/sweating.  I also have felt tenderness in one of my testicles/groin area, but it could be all in my head due to anxiety/paranoia.  I don't feel any symptoms at this point in time; I honestly feel that my anxiety played a large role in any/all symptoms I experienced except for the diarrhea.  Is the diarrhea bout anything to worry about/does it sound like acute HIV infection?  

[Life360_Dave]

No it does not appear std related at all. Topical stds would be herpes and syphilis and what your describing doesnot match those type of sores.

[Liam225]

Thank you for the answer.  Hopefully it is just some form of irritation.

[Life360_Dave]

Hi, we dont use symptoms to diagnose HIV infection only testing would confirm hiv. We only advise risk and unprotected vaginal sex with a sex worker would be considered high risk If your concered you can take the DUO test at 28 days but the odds you contracted hiv from what you describe from a one time affair are pretty slim and nothing to be overly anxious about.

[Liam225]

Thank you for the response.  After my recent comment, while in the shower, I noticed a red circle on the glans of my penis (a quarter the size of a dime).  It does not itch or hurt.  I thought I may have noticed this a few days ago, and confirmed it today.  It hasn't gotten worse in the past few days, but I can definitely see it when very carefully observing.  Does this sound like any STD?