So I posted this bit in the HIV forum and got an answer that the symptoms aren't HIV related because my action never exposed me to any of the risk. However I still need to know what kind of STD that I might have caught from unprotected oral sex. I had an unprotected oral sex experience with a sex worker in Mid Sept this year, didn't really have vaginal intercourse with her because I ejaculated during the oral sex and couldn't get hard after. The following symptoms showed up 4-5 days or a week after (don't really remember):
There's a dry red rash at the tip of my foreskin. It wasn't painful, no blisters, no lesions, no bumps, no wound, it was just really itchy. The rash lasted for 3-4 days and it disappeared after. I didn't feel pain when passing urine and I don't think there was any noticeable discharge, the only thing that I felt weird was maybe one day I saw what I thought was additional pre-cum in my underwear. Sometimes I have pre-cum in my underwear but that day was slightly more than I'd usually see, just slightly more. I'm uncircumcised and I just found out recently I have phimosis so I can't pull back my foreskin to see if there's any abnormalities at the tip of my penis. But as far as irritation is concerned it's only the rash on my foreskin. I was pretty healthy since then, only had a 12-hour fever at the beginning of Dec and followed by a bad food poisoning for 5 days, and lightheadedness & light nausea for the next 1.5 weeks. The doctors suggested me that I could be dehydrated and malnutrition during the lightheadedness period, I regain strength everytime I eat a proper meal but never 100%, I only got back to 100% without having to eat on time after 1.5 weeks.