4. Excessive Sweating
One of the more common symptoms of an impending heart attack is profuse sweating. The reason for this is because there is often a big rush of catecholamines that occurs right before a heart attack. Catecholamines are hormones that act like dopamine and cause clamminess and cold sweats. While this can be a symptom of something else, it is also considered to be a serious warning sign of a heart attack especially if it occurs along with the other symptoms on this list.
If you start sweating profusely for no real reason and experience pain in the chest or other areas of the body or if you feel like you are more anxious or stressed than normal, it is important to make sure that you seek medical attention right away. These are all serious signs that something is wrong with your heart and the faster you get medical attention the better.