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).
Causes of Similar Symptoms to Tongue discoloration. Research the causes of these symptoms that are similar to, or related to, the symptom Tongue discoloration: 1  Black tongue. 2  Jaundice (789 causes). 3  Anemia (926 causes). 4  Scarlet fever. 5  Kawasaki disease (5 causes). 6  Candidiasis. 7  Riboflavin deficiency.