What to do if i wake up in the morning with a small peice like a food crumb in my mouth. do i have tapeworm?

2 things to do:: First, brush, floss and rinse your mouth out better before you go to sleep and do this on a regular basis. Second, we have no way of knowing whether or not you have a tapeworm, but the likelihood of that is extremely small and a piece of food in your mouth upon awakening is certainly not a sign of that. If you have unwarranted fears, or need confirmation, see a physician for an evaluation.