What Causes A Large Lump At The Base Of The Throat?

HI, about two nights ago I felt something bother the back of my throat, naturally I thought it was tonsil stone, as I get those often. I was coughing to try and get them out but they wouldn t. So, I finally went to look in the mirror so I could see exactly what was bother my throat because the tonsil stone would have been out by then. I saw a large, flesh colored lump attached to my right tonsil. It s connected more at the bottom of my tonsil and is just above my tongue, if I move my tongue up and back I can feel it. It s only on my right tonsil not on my left tonsil. I haven t had a sore throat in awhile so I don t think it came from anything like that. I looked it up on Google and almost every single site said it was oral cancer! I really don t think it is, but am still a little concerned. I hope that is enough information.