Choking is when one is not able to breathe.
Choking is caused by food or foreign objects such as seeds, bones and coins stuck in the throat or air passage making breathing difficult.
Suffocation occurs when there is inadequate supply of fresh air or when the wind pipe is blocked, hence preventing air from getting into the lungs.
Shock is a temporary lack of supply of blood to the brain and other vital organs.
It is caused by upsetting or good news and events such as electric shock, excessive injury, and illness.