Thanks for the response Guys. I have been going out of my mind with worry.
I have been out of the country for the past week and it's all I could think about.
Would you recommend going to your GP or dentist about it? I need peace of mind now... And to find out what it is for sure.

Do you mind me asking what age you are? I have read that more and more people under 30 are developing oral cancer. This terrifies me even more and now my throat feels really tight and like there is something tight around it.

I have stopped smoking.... The worry makes it even harder not to not smoke. Really stupid I know.