I have been suffering differents symptoms after have sex with some girl. Fever, rash, swollen glands, neck and shoulder pain, fatigue, lack of appettite, etc. Obviusly after that I thought about hiv or other STD, but I have a negative Elisa after 6 month and negative results for others STD. My doctor said I have nothing, but I still feel sick. Could this be an autoinmune illness because of the stress or something? I tested for reumatologic issues, neurologic, etc, and nothing, but my white blood is low, thats why I still think in hiv and I still have symptoms, could be autoinmune?