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 cyst on the tongue presents as a lump under the surface of the tongue. A cyst on the tongue can cause difficulties with swallowing or breathing if they protrude from the surface and grow too large. A cyst on the tongue can become infected .Other possibility is a condition called transient lingual papillitis.