That's interesting. I get canker sores from stress. So maybe this is stress related. Thanks.
I get the blood blisters in response to stress! Then I can get quite a few that stay for sometime. I cannot think of anything else but maybe someone else may come up with another avenue?
I had not thought of that. But it has been there so long that I don't think it was from biting my mouth. And I seem to be getting one on the other side, as well. Thank you for your response.
Have you thought of a blood blister? Maybe you bit the side of your mouth at some point.