What causes the feeling of swallowing your tongue?

tongue swelling: Tongue swelling is a common feature in an allergic reaction. The release of histamine by allergy mediating cells known as mast cells can cause tongue and face swelling. Other causes include infection, trauma like biting your tongue, growth in the tongue, certain medications, autoimmune disease and a foreign body lodged in the tongue as well as acid reflux from the stomach.

Tongue swell: Tongue swelling is an emergency. Take an antihistamine if you have one and go to emergency room. Ace inhibitor antihypertensive medications (like lisinopril) are known to cause this.