Result of atherosclerotic plaque blocking one or more of the blood vessels that supply the heart. Can cause chest pain/angina pectoris occurring due to stress of exercise. If blockage completely impedes blood flow to the heart, a heart attack can occur.
It can be caused by insect stings, food, or medicines. It's caused by the release of histamine into your bloodstream and tissues. Histamine is an immune system chemical. Tongue or throat swelling can happen along with an allergic rash (hives), wheezing, diarrhea, and shock (low blood pressure).
Swelling of the tongue can occur due to inflammation of the tongue (known as glossitis), the presence of abnormal substances (such as amyloid protein) in the tongue, the collection of fluid in the tongue as a result of different disease processes, or tumors that infiltrate the tissues of the tongue.