Greetings everyone. I have had a bump on the roof of my mouth for a few months and it just will not go away. I'm wondering if someone might have a decent idea of what it could be. I've been worrying about this nonstop and would just like to know if it looks similar to anything this community has experienced...

First my symptoms:
Red swollen bump behind my two front teeth
Odd whitish lines near the front of my mouth
Really dark line down the center of the roof of my mouth
Painful and sore roof of mouth



Please help. Be honest if it looks worrying. I went to the emergency room in a panic and they have referred me to a ear nose and throat doctor to have it looked at. I'm just curious about what this community thinks...