What cause this to happen

Question

This question is going to be very confusing. Please try to imagine because I don't know how to describe what I'm talking about really. On the top of the inside of your mouth what cause it to become swollen sometimes. Sometimes I feel a tender swollen what feels like a bump on the top of the inside of my mouth what is that? I hope you could understand what I am trying to say.

Answer 1

could be an allergy

Answer 2

It is a mild allergic reaction often cause be eating something acidity (tomatoes, citric fruit) or spicy.  It can also be caused by "bumping" the inside of your mouth.  For example, if you bite down on something hard or firm.  

Answer 3

On the roof of your mouth?  My first thought is allergies, my second thought would be that you injured your roof.

If you're really concerned, it lasts for a while, it starts hurting, or you have trouble eating/talking/whatnot, then go see a doctor.  If it heals on its own, I think you'll be fine.

Answer 4

well you should be going to a doctor instead of asking online =/