So how many of us get mouth sores. I've had a few from time to time but they always have been in the roof of my mouth. The ones i have now are on the upper gum and very sore. Can we always blame these type of issues on crohn's or would i get them if i didn't have crohn's.I'm thinking my crohn's is in remission but sometimes i wonder due to all the pain i feel in my muscles and joints how do we really know? I never seem to have the ulcers in my mouth when i have an appt. with my drs. So would you consider yourself in remission while having mouth ulcers and joint/muscle pain?