Fainting
A near-fainting spell or sudden fainting might happen along with your heart palpitations. This would also be followed by lightheadedness, dizziness, or sudden cardiac arrest. It is mainly caused by inadequate blood flows to your brain, which makes it impossible for the body to function properly. This is a very serious condition, so whenever you notice this sign, along with other associated ones, make sure to visit your healthcare provider as soon as possible. [4]
