Hi just really want to know what this is

[James tucker]

This have been like this for the past two days and the bottom row of my teeth the gum either side is really sensitive and I can’t really bite down swallow or do anything without something really hurting don’t understand what it is I only have the pic of my through and have t taken any pics of my teeth but they have like some white stuff around the back gum part u might see a gla,s in the pic I took but and help would be appreciated

 

[honestdoc]

Can you take more images? It is at an unusual angle.