Raggie,
I can understand your concern, but do not let it keep you from seeking medical attention today.
Maybe you bit your tongue or cheek in your sleep.
Do you smoke?
From reading your posts, I know you have had some rough times lately. Maybe stress caused an ulcer. Do you have discomfort after eating a meal?
Call a taxi or ask a neighbor to give you a ride. If not possible, call an ambulance.
Delaying treatment and diagnosis could cause more serious problems than whatever this problem turns out to be.
Go now.
Let us know what happens.
All My Best,
Fin