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.
Eye floaters and flashes can be the result of the retina becoming detached from the inner back of the eye or the vitreous pulling away from the retina, says Marilyn Haddrill of All About Vision. Ordinary eye floaters that are no cause for alarm can also cause these symptoms. Continue Reading.