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.
Different people have different triggers and different symptoms. Some people experience aura, which can cause changes in vision. Sufferers have reported seeing flashes or bright spots. Although an exact cause is unknown, brain scans show that migraines may be due to âhyperactivityâ in parts of the brain.