Jim, be proactive! Keep up the walking. Also, you can buy a Microlife PF100 on Amazon. It measures your forced expiratory volume (FEV1) in one second. Once you take the pulmonary function tests (PFTs) at the office, you can track your progress at home. It's not expensive and only takes a minute or so. Keep track of your progress in a journal. Also available online is a pulse oximeter which measures your oxygen level on your finger. Mine is Pulse Oximeter model 500DL (Zac Vrate is the manufacturer, I think). Both are very easy to use. And maybe you need a new pulmonologist; you need to have confidence in your doctor. How old are you? I am 78.

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