What Causes A Small Lesion On The Inner Lip In A LPR Patient?

Question : I have LPR and have for years. I noticed over the last years that if i drink coffee for a few days my symptoms flare up.
I get a sore pallete, sore tounge, irritated feeling inside my cheeks and lip, my throught, etc...
I recently have been dealing with a flare up for about a month off and on.
Now, im not sure if its the LPR or if I bit my lip(seem to remember bitting it on accident just before i noticed it).
anyway, I feel a little swollen area on my inner lip, its small and not very raised or firm but I can feel it.
When I look at it theres nothing visible. All the tissue looks the same across my entire lower lip. its not big enough to be seen either, even when looking with my wifes magnified face miror. its all just pink tissue with veins visible here and there across my entire lower lip. Theres also no pain.
my daughter had a mucocele a few years back and the ENT said they take a while to get as big as hers was and it was from trauma. we only saw hers when it was about the size of a BB and hers was surgically removed.
Im a hypochondriac so I was wondering if this is likely what this is or just irritation from LPR. I could send a picture but theres nothing at all discernable.

I uploaded a picture of my lip.
The picture looks like I’m focusing on the area by my index finger. It’s not, it’s just outside the middle toward my thumb is the only place I feel a little bump.

When I pull it down it’s all just pink tissue.