The reason I bought all my breathing measurement equipment was because I went to four hospitals for comprehensive breathing tests. They all used different parameters. The first test I had done in December 2014. It said my FVC was 68. It was at a pulmonary doctor's office. Then, a month later, Mayo said it was 80. Two other tests, two other numbers. My best guess is that my FVC was always below normal because I have always been a chest breather and my total lung capacity was low.
I got professional equipment in late 2016-early 2017. My RT said they are better than the equipment he uses. My MIP, MEP and MVV have always been at or above 100%, even at Mayo, Florida Hospital, and Hopkins. My FVC is all over the place. At home it ranges from 80 - 86, depending on the day and my energy level. I will say there has been a huge learning curve in getting an accurate FVC. I think it has something to do with my anatomy. It's the same lying down as it is sitting or even standing. My SVC is a few points better.
I don't get my exercise by walking although I probably get up to a mile a day around the condo and on the grounds. I have a PWC and a walker but don't need them around the condo or grocery shopping as I can still manage.
I went to a huge mall a couple of weeks ago and I couldn't manage to go as far as I needed. But I figure I walked about a mile throughout that day. After, I found out they rented scooters and I would have done that had I known.
When I'm in the pool I straddle a pool noodle and paddle with my arms. I can do this for 45 minutes. Last year I could do it for over an hour.
My arterial blood gasses have been good with low CO2 and high Oxygen.
I'm feeling better taking the CBD in the morning and at night and plan on adding the THC in the morning, too.
I like to introduce one thing at a time to see if it makes a difference.