I am concerned because i have recently seen white spots/lines on the roof of my mouth. It started as a big painful bump, them turned into these smaller sores that are very painful. I have been using oxy-cide, but it hurts a lot. I had previously been experiencing a throat ache and diarrhea. I thought this was because i had a party recently and had a lot to drink, so i attributed the stomach problems to that. My children has sore throats so i attributed the thorat ache to that. But, i recently had unprotected sex with my boyfriend, he did pull out but i know you can contract things anyway, and i did perform oral sex. Could this be an STD, more importantly, could these be symptoms of something worse. I am really concerned!!!