Wierd flap on cheek with white spot

[TKxCE]

I just noticed this today. I can move it up and down with my tongue. It feels like a flap of skin, but when I went to look at it in a mirror I noticed there was a white spot on it. Can't afford a trip to the dentist right now, especially with everything going on. Any ideas on what this could be?
As a note I do smoke a vape regularly, and will occasionally smoke a cigarette or two every few days.

 

[honestdoc]

It looks mostly like a canker sore which is mostly autoimmune response. It usually goes away about 7-10 days. It is best you try not to smoke because it irritates the area slowing the healing.

 

[TKxCE]

Thank you