Hi S The good old fever blister which the rest of call a cold sore, yes its herpes and around 93% of worlds population has it.
If you don't trust that get to your local sexual health/GUM clinic and get tested to calm you down, because stress will only make you really sick in many ways.
actually now my mind is stressed and all i can think about is diseases, and im afraid of hiv although i know its impossible, even she had it there is 0.003 chance to get it, but know all i think about is being diseased and i think im going to die . i just want to know that those things that i explained is a STD or not
based on the fact that its been almost 16 weeks after my intercourse with my girlfriend