Hi, when I'm practicing breathing meditation, the more I concentrate on my breathe the subtler it becomes (I believe that is what is supposed to happen). Untill I get to a point where the breathing becomes so subtle I feel like I need to gasp for air. when this this happens I have to breathe harder. then when I concentrate more, then breathe becomes so subtle that I feel like I need to gasp for air again. then I need to breathe harder again. its a cycle that goes on for the rest of my meditation.
Is this normal? is there something I can do to stop it? I wonder if I was able to keep the breathe subtle it would lead me deeper into the meditation, where I might be able to reach access concentration.
I've tried intentionally keeping the breathe subtle, but I can only do that for a short period of time before I need air.
Any advice would help,