When exercising: clogged ears, raised heart rate , hard eyes, pulsating neck and head, red skin blotches on face, feels like walking on air why?

Blood pressure: Blood pressure goes up during exercise, which explains your symptoms. This is normal.

?physiologic: During exercise the heart rate, blood pressure, and cardiac output increase and can cause the ears to seem to be "stopped up" and cause the pulsations in the neck. Blood flow increases to the skin to help eliminate heat that the body is generating (flushed face). I suspect you may be hyperventilating to some degree and that causes numbness and tingling around the face, arms and legs.