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).
Angioneurotic edema can also occur as allergic reaction of other medications causing swollen tongue. Eating too hot and spicy foods can also affect the soft lining of the tongue causing inflammation. Deficiency of vitamin B12 can cause inflammation of the tongue.