I had unprotected sex 3 weeks ago. I now have a rash that covers my stomach and chest, with a few splotches on my throat and arms. Other than the rash, I haven't really had any other symptoms. I did have a slight cold within 5 days of exposure and then 2 weeks in, a slight fever (100F max) and equilibrium issues. I know a test is needed, but should I worry myself to death while I wait for the 8 week mark.