The top (roof) of my mouth has been sore for 1 week and not getting better, it started bothering me after I had eaten some salted in a shell peanuts. I remember thinking I had a peanut shell stuck behind my front teeth. Now it feels puffy and sore. Yesterday I pressed my thumb down on it and made it bleed. Should I go see a doctor? I'm also leaving for a 2 week vacation in 3 days so I'm concerned.