Yes, it’s VO2 max. Don’t want to give my numbers but I reached low ability. I’m mainly a walker. The hills started to get difficult. I had a persistent cough

Yes, it’s VO2 max. Don’t want to give my numbers but I reached low ability. I’m mainly a walker. The hills started to get difficult. I had a persistent cough that never went away after a winter cold, and shortness of breath. Now think the cough was actually caused by iron deficiency but I’m not a doctor. Went to an ENT, pulmonologist, and GI before we tracked down the issue. No one bought into the Apple Watch numbers. I researched it on the Internet and no one really knows how it’s calculated. It could have been any number of issues. I’ll add being anemic to the possibilities.