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).
A: The most common cause of new or come-and-go tongue swelling (or swelling of the lip or throat) is a type of allergic reaction called angioedema.. Sudden tongue swelling can sometimes be dangerous because it could block your airway. Two types of angioedema can lead to a swollen tongue: 1.