I've had a sore throat for about a week now. At first it was just read but then two days later I noticed a single white spot on the very back of my throat. Now there have been a few more white spots that are on my tonsils. There are only a few. I'm worried this could be thrush because my throat is killing me and my antibiotic doesn't help. I also have a couple of enlarged lymph nodes and I started getting a cough the other day. I don't really have a fever.