Hello all, I stumbled across this site when I googled the condition (I have the same thing happen with the roof of my mouth--only at certain times and only first thing in the morning--very painful feeling). And for the record, I did not get a band. I wanted to contribute to the question stream to let you know it's unlikely due to the band. I still don't know what causes it, though, and would love to know! Someone mentioned Vitamin D deficiency? Thank you!