I Noticed That My Long Winter Socks ( Like Tavel

I noticed that my long Winter socks ( like tavel socks ) were getting fat too tight and leaving marks on my legs. Now I find that my legs have swollen alot. I am male, aged 73 and unable to take much exercise due to having COPD. I use one of those foot messagers each day for 30 mins. as a friend said it would help with exercise. I have tingling in both legs. I have not taken any medication for this.
I use a nebuliser for time a day and Symbicort & Ventolin....each, four times daily.

Thank you for any help you can give.
Flan Gleeson