My symptoms included a sore throat and soreness when swallowing. The doctor put me on antibiotics and when I went back because it was still sore - he didn't like the look of it so arranged for a specialist. It turned out that a tonsil had grown back and was cancerous.
There is a definite appearance and I am sure your dr. would tell you if he thought there was any possibility of you having cancer. So rest a bit easier.