Hi,
I've last had unprotected oral sex (I didn't wear a condom) early october last year 2012 (the first and only time I've had oral sex), and I remember about 1 month after that I had a bad fever, I felt really cold and sick, I went to the doctor and strangly I was completely fine the next day. And nothing happened until two days ago after a tiring day without much sleep, I started having headaches at the at the back of my neck behind my right ear, the headaches last around 2 seconds and repeats every 6 to 10 seconds. And today after shower I found a very tiny red dot/lump on the head of my penis next to the pee hole. It does hurt or itch, can this be a STD, Herpes?? I took a panadal and it cured the headache. Theres nothing in my mouth, I do feel a very mild sore throat.
I am worried that I've caught some STD or HIV.