A week ago I had sex with a sex worker. I'm 19. From South Africa. She gave me unprotected oral sex. But then I had Protected vaginal sex with her. When we were done, I noticed bleeding on the condom, coming from her. I asked her if she was HIV positive, but she said she is clean. The day after the encounter, I was very tired!!! Just wanted to sleep. My eyes felt bloodshot, very dry. I didn't have an appetite at all. As the week continued, at a later stage, I started feeling a slight pain in my lower abdomen. And I started losing weight. I went from almost 85 KG to 81KG. I am soooooo sick with worry!!! I don't want HIV!!! For the rest of the week my appetite came and gone. But it isn't my normal appetite. I'm a rugby player and eat a lot!!! Yesterday I woke up with a very stiff neck. This morning I woke up and my stomach was really upset and I had a couple of cramps. I had a bit of Diarrhea this morning as well and no appetite. I went to the doctor. He said that he thinks I'm alright and he gave me antibiotics. He said that earlier in the week he had a couple of cases with an upset stomach... Do I have HIV? OR am I safe? Please let me know! Today I feel very tired again. Sleepy. Just want to sleep. Do I have a stomach bug that is in the air now or do I have an std???????!!!!!!!!!!!!!