Thomas, same here always out of breath and it really has changed the quality of my life. When I walk or work in yard or house I get may 30 to 45 before I have to sit and let my heart rate come down.

Walked 1200 steps fast Walker. Heart rate up to 130. I was done for the day. 3 hours later heart rate still in the 90's. I know it will get worse, but still mild. It sucks, but we need to kick it's butt. Still no medication or treatment. Doctors just tell me to exercise and lose weight, but can't breathe after 1200 steps. And still get the bill for PAH specialist. I knew I was overweight walking in the door.