6. Difficulty swallowing
Are you having trouble swallowing your food? That condition is known as dysphagia, which may be caused by a huge tumor in the larynx that causes the opening of the esophagus to narrow and causes the food get stuck in the throat or to go back up.
The Oral Cancer Foundation explained that swallowing is a complex series of neuromuscular process that is integrated into a smooth and continuous process. Any disruption in the swallowing process during a bolus (a mixture of food and saliva that forms during the process of chewing) transport from the oral cavity to the stomach causes dysphagia.