7.Trouble Swallowing
The common cold, acid reflux, or even some medicine can make it hard to swallow once in a while. If it doesn’t get better with time or with antacids, see your doctor. Trouble swallowing can also be a sign of cancer in your throat or the pipe between your mouth and stomach, called the esophagus. Your doctor will do an exam and some tests like a barium X-ray, in which you swallow a chalky fluid to show your throat more clearly on the image.
8.Mouth Issues
From bad breath to canker sores, most changes in your mouth aren’t serious. But if you have white or red patches or sores in your mouth that don’t heal after a couple of weeks — especially if you smoke — see your doctor. It may be a sign of oral cancer. Other things to look for: a lump in your cheek, trouble moving your jaw, or mouth pain.