Symptoms of heart palpitations may include a passing sensation of a pounding, rapid, fluttering, or skipped heartbeat. These sensations are usually felt in the chest but may also be felt in the neck and/or the throat. Generally, there are 2 broad types of palpitations.
Flashes of light that appear as jagged lines or heat waves in both eyes, often lasting 10-20 minutes, are different. They are usually caused by migraine, a spasm of blood vessels in the brain.
How to know if a painful eye is an emergency. Eye Symptoms A to Z. A list of nearly 100 eye symptoms and the problems and diseases associated with them. Eye Twitching. Eyelid twitches, tics and spasms are maddening. Here are common causes. Floaters, Flashes and Spots. Eye floaters and flashes may be harmless, or they may signal a serious problem, like a detached retina.