At the beginning of December I started running a fever one night and ran it into the next day. Ever since then I've had an on/off "sore" throat, not in terms of pain but just in terms of irritation. I noticed a white coating on the very back of my tongue. I saw a nurse practitioner who said I have some small tonsil stones. It made sense to me but she didn't explain anything about my tongue, and I can't find anything that associates a white tongue with tonsil stones. Its too far back on my tongue to try to scrape off, if I try to I gag. Also the white spots look just like internal spots and not really the external stones I've found online. I'm worried it could be an STD because I'm gay and have had several encounters recently, but I never had anal intercourse in my life. Just have received and given oral and made out. No other symptoms. Should I get tested or am I overreacting?