Open Question: I have a bump on the back of my throat?

My throat has been sore for the past few days so I had someone look at it. (not a doctor) They said that there was a bump on the side of my throat. Not on my tonsils. Any idea what it is before I go to a doctor? Make sure your question follows the community guidelines. The pain is only there when I swallow. I can't feel the bump at all. And my lymph nodes are a little swollen on the same side.