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).
An enlarged or swollen tongue can also occur as an allergic reaction to medications or other substances. In this case, the swelling is due to fluid accumulation in the tissues of the tongue, medically known as angioedema. A dramatically swollen tongue can lead to breathing problems and may be a medical emergency. Treatment of allergic reactions that include swollen tongue can include epinephrine, antihistamines, and/or steroid medications.