Try not to work yourself up and do irrational things like just pop antibiotics willy nilly. You aren't helping yourself. You sound like anxiety is ruling your day. What is a 'questionable' female? Would she say the same as you since you? Just asking because we assign these things like we could ever possibly judge if someone has an std by how they look or act. We can't. Your activity is very LOW risk. Oral sex is not no risk but low for things like herpes simplex 1 (mouth herpes) that would be passed to your genitals (does not become genital herpes, but then is oral herpes on your genitals, STILL herpes simplex 1). Normally a doctor can diagnose if you go to them when you have a sore. You missed that opportunity and tried to self medicate. I'd tell you that you don't need to be tested unless you develop anything more but would imagine that won't be satisfactory to your anxiety so go see your doctor. But remember, you had virtually no risk.