I have had severe cardiac issues my entire life. Im 30. My diaphragm was paralyzed during one of my open heart surgerys. My O2 sat is usually mid 80's on a good day. I have had a lot of issues with pain, and breathing lately so I just had a cardiac cath. They found out my left lung no longer functions. I'm not sure where they want to go from here they are waiting on a specialist, hopefully by monday. Anyone had a similar experience? I feel pretty alone and uncertain.