Well, you do get around, don't you! I hadn't thought of smoking being an issue but you could well be right, because of course smoking reduces the amount of oxygen getting into the bloodstream and that could cause the poor circulation. One of the factors which finally got me to quit was a podiatrist pointing out that the discolouration like lots of small broken veins around my ankles and instep was poor circulation caused by smoking. I don't think I had cold feet though, if so they weren't bad enough for me to remember it now. I've always done specific foot & ankle exercises and they were recommended at rehab so I don't know if that's a factor for me and I'm not giving them up just to find out if I end up with cold feet!
Congratulations and good on for you for giving up: it's not easy, I know, but it is worth it whether or not COPD is an issue.
Your figures don't look too bad to me.