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).
You may have a slightly swollen tongue or a severe one that might make eating, breathing and talking difficult. At times, it is not only your tongue that swells but also your voice box, taste buds (swollen tongue papillae), gums, mouth and even lips, depending on what causes the swelling.