I had sex with my office colleague 15 days back and he looks healthy and happy, but within two weeks of that incident, I got cold, fever 99.8 Fahrenheit, sore throat, toothache, and severe cough like never before. I am very scared. I got my period four days after sex. I am worried about HIV(Human Immunodeficiency Virus). I asked him if the condom was intact and not broken he said it was all intact, and I should not be worrying about HIV. Still, I am getting paranoid. Please advise.