So I've been getting this painless blister thing on the roof of my mouth. It keeps appearing in the same location and then (I assume) bursting shortly after, within a day ish. About an hour or two ago today (12/04/2020) I noticed it's come back for the 5th time (potentially 6th, starting to lose count) since the first one I noticed on the 02/02/2020. I fact while typing this my current one must have burst because I went to feel with my tongue and it felt a lot flatter.
With everything going on now I don't really want to have the physically see a dentist, and I will probably try to arrange some sort of phone call appointment with my doctor Monday about it, I just wanted to see if anyone here could offer suggestions as to why this keeps coming back. I've attached a dated picture from today, with pretty much the full back of my mouth in view (I noticed some redness back there at both sides, didn't know if it was worth including). The blister is on the left behind my teeth.
P.S. please ignore the fact there's bits of digestive on my lower teeth, this was taken before I brushed my teeth.