I am perplexed as to how it has come about..
It is a scabby-like sore about the size of a 10 c piece, on her bottom gum just below bottom teeth. It is not in a place where the bit touches, and I have no idea how a scab could have formed here.
Perhaps a gum infection? Doesn't seem to be worrying her, still eats all day however the other day I gave her a hard feed and she ate some, and then just stopped eating for a while. She has done this before, but she never gets hard feed so when she does its a big deal for her - So I thought it was a bit unusual for her to be disinterested in her food. I gave her hay today which she munched down.
Time to call the dentist or vet? =(