What Causes Yellowish Pink Mouth And Bumps?

Recently my mouth has been taking a turn for the worse, it's a yellowish pink color and the back off my throat is yellow as well with all these red veins showing, and where the tonsil area is it looks like it's corroding away it's all bumpy and has like different bumps everywhere, also every now and then this little spot thing that looks like a yellow white thing is the best way I can describe it pops up for a couple of days and then goes away and depending where it is, it hurts, it appears on the inside of my mouth by my lips. I thought it was acid reflux because of the fact that I burp a lot so maybe when I burp and something comes up it was the acid but now I don't know please help!