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Cardio performance is unpredictable

599 views 0 replies 1 participant last post by  Gabrielhewitto 
#1 ·
Why does my chest/ lungs vary significantly when I exercise. Most of the time they feel stuffy and inefficient. Is this normal!?

I’m 21 now, when I was 16/17 my lungs felt full of oxygen and breathing seemed effortless when exercising. I’ve always engaged in physical exercise. This being a combination of cardio, weight training and general walking. Now I feel I’m gasping for air and my cardiovascular system just seems less efficient. I feel my energy levels are also unpredictable regardless of sufficient sleep.
 
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