A few months back (approx Sept 2003) I started having difficulty breathing (shortness of breath, feeling like I can't quite catch my breath) and this happens all the time, not just during workouts. It seems to be worse when I am doing heavy workouts though cause after it first started I had to take a few months off and my breathing was better but not back to normal. I went to my doctor and they ran several tests and everything came up clean. I went to 2 specialists and they were all stumped and said that there seemed to be nothing wrong so it was probably anxiety since there was no way to test for that. I don't believe it is anxiety I don't have any of the symptoms otherwise.
So, I did my own reading and found that a magnesium deficiency can be the reason for shortness of breath. I started to take magnesium supplements and I have been doing very well. In the last few weeks I have upped my workout back up to where it should be and I started having difficulty breathing again. Anyone else had this happen or any ideas whats going on? Like I say, the more I workout the worse my breathing is, and the breathing problems are 24/7 not just during workouts.