Experts say there are designated symptoms that happen in the days and weeks before a heart attack that can be a red flag. Knowing these signs could be a lifesaver. Heart disease i

The next warning signs of a heart attack is rapid or unusually high heartbeat. This is also known as palpitation in medical terms. When the heart is struggling to function, it beats rapidly -- giving you a clear indicator that something is terribly wrong inside the body. Do not ignore this symptoms at any costs.

Silent heart attacks can occur with no telltale signs and might not be diagnosed until weeks, months, or years later.