White "ball" in throat? Candida?

I felt like my throat was swollen a little-but no pain so I looked in my throat with a flash light and in the back of my throat on one side is a very white ball that is just sticking to my throat. Its about the size of a pearl. I tried to swallow and drink water but it was still there, after I ate lunch it's somewhat smaller in size and different shaped (thinner). Is this candida or some type of infection or cyst or what? anyone have any ideas. Its really far back so I cant touch it. I sprayed some hydrogen peroxide in my throat to see what happens.

thanks