Craftyone I send you hugs and ?. You have had an awful lot of stress in the last 5 years (I can relate to that, some issues similar, some different). I think you are wise to listen to your body, and rest as it demands. In time, you will, I'm sure, come to love your new home and will make new friends. Also, as you say, some of your old friends are visiting, which is lovely, and I think it will be one visit of many, with you probably going to visit them, too.
Pottering about, doing jobs as and when, are the best thing to be doing for now, but over this next few days, enjoy your time with your friends.
I agree with you in that it sounds as if you are on the upward path, which is fantastic.
Take care.