So Monday I gave my first oral sex. The guy was clean and everything didn't see anything wrong with it. Then I gave him oral sex but I didn't get his discharge in my mouth because I stopped. Next day & today I have sore throats & hurts swallow. I've been spitting yellow mucus with tiny bit blood but before I gave oral sex I was already sick from dry cough that hadn't gone away still. Is it STD or my cough? Because it's only a sore throat nothing else.