air pressure pushes all around you, it is the force of air spread over the surface area of your skin
pressure is the measure of how much force over a certain area
this is an example
imagine putting a 10 pound weight (disk) on your stomach (not dropping, puttting), not too hard right, now imagine that it was 1 pin that was 10 pounds, that would hurt, the force is still 10 pounds down but the surface area is alot smaller, more pressure