I was tested negative at wk 3 from my last sexual encounter. However, on the 8th week. I started to experience symptoms of stomach flu/food poisoning- fever, abdominal pains, diarrhea, dizziness; that lasted about 3days. and I noticed some allergy on my skin, which looks like hives on the 3rd day around my arm and thigh areas. They go away after a hot shower or after an hour. Am I experiencing any symptoms of HIV or are the hives related to food poisoning? Thanks alot.