Unconsciousness
Do you sometimes pass out? Do you often faint? This could definitely be a warning sign of heart disease. Unconsciousness can be caused by several things, such as extreme physical exertion, pain, and dehydration. One cause could be heart disease, as it usually begins with a drop in blood pressure, which in turn causes a lack of oxygen in the blood. The lack of blood in the brain leads to fainting. The majority of tachycardia and bradycardia sufferers describe that they initially experienced fainting spells. So if people around you complain of fainting or passing out, they strongly advise you to see a doctor!