Probably the tonsils.
Usually that can be a pimple on the inside of the nose.
causes of swollen xiphoid process
You are swallowing air to fast.
Strep throat
A suddenly swollen tongue can be caused by an allergic reaction. A chronically swollen tongue -- in other words, the tongue becomes swollen over time and remains swollen -- can be an indication of hypothyroidism.
usally allergic reactions
The autoimmune disease Sjogren's syndrome causes damage to moisture producing glands of the body. This can result in difficulty swallowing food and decreased saliva.
smoking.
if you have an allery or if something bites you or irritate you , depends.
pregnancy
an infected tooth is possible
visine for dry eyes