Good Alley...about time you listened to all of us!!!
I am a cardiac patient...I had mitral valve prolapse, basically Tetralogy of Fallot. I was a blue baby. Which is from oxygenated blood not getting to where it's supposed to be going. I've had 2 corrections that worked.
Have them do an Echo on his heart...
Not keeping an O2 level isn't good...it almost sounds like emphysema or something similar.
He should also have a Peak Flow Meter to test how well his lungs are working...
Hopes and prayers are with you both.

I am a cardiac patient...I had mitral valve prolapse, basically Tetralogy of Fallot. I was a blue baby. Which is from oxygenated blood not getting to where it's supposed to be going. I've had 2 corrections that worked.
Have them do an Echo on his heart...
Not keeping an O2 level isn't good...it almost sounds like emphysema or something similar.
He should also have a Peak Flow Meter to test how well his lungs are working...
Hopes and prayers are with you both.