Just wanted to share something today that I have just learned. Occassionally I have trouble breathing along with upper back pain. Thought it was arthritis from riding too many miles on my bike yesterday, but I also had trouble catching my breath. Speculated it was asthma related, but always believed it was my lungs were inflammatory. So, I had to get out of bed because I tossed all night from this pain. I made myself a cup of pukka relax tea (chamomile, fennel and marshmallow root) and the back pain diminished and I can catch my breath. Marshmallow is suppose to help lung function, and boy it did today. The only trouble I am having is that I probably need to cut back on my distance bike riding. It will be trial and error. I know I push myself too hard sometimes riding because I enjoy the challenge. It will be hard for me to back off and I won't know how much. I have read on here that others have to watch their cardiovascular workouts. Is it because of the inflammation in the lungs is my question? And how do you know when to back off a little? Curious? Thanks for any advice.