I am an 18 year old heterosexual female. 8 months ago I engaged in unprotected oral sex, with no ejaculation, both giving and receiving. I know this male has had previous partners, but claims he has no STDs or anything. I had no symptoms of anything after. Since then I had kissed people and still no symptoms. I recently got involved in a relationship with a boy my age and I am his first. We have engaged in unprotected oral sex (with ejaculation) and protected sex. We have been together 5 months. I was tested negative for STDs. Recently in the past 2-3 weeks my lymph nodes in my neck have swollen. They are about 1-1.5cm and I feel tired and no appetite. I recently got a blood test done for mono, and deficiencies, ect, but not HIV and I also fainted. I have no fever, no headaches, no cough, chills, or anything... Just fatigue and swollen glands. Should I be worried about HIV? Is this a cause for concern?