Several years ago, I began experiencing the symptoms of Raynaud's in my hands. They'd get painfully cold and then warm up too much to become painfully warm, red, and itchy. My fingers would puff up and get stiff. I learned that arm warmers/fingerless gloves helped quite a lot to ease the pain and discomfort.
A little less than a year and a half ago, we were living in an apartment with tile floors that looked great, but were always cold. I began to experience the same symptoms in my feet and toes. There seems to be no good solution to this and the advice given is to not let your hands or feet get cold. Easier said than done, but I do what I can with my woolly creations and have been happy that I have plenty of socks in various thicknesses and fibres to help.
There was one fly in the ointment and that was at night. Almost every night, I sit in bed for a few hours and read, listen to podcasts, stitch, or whatever. I have a heating pad that I use if my feet are really cold, and I can wear socks until I am ready to go to sleep, but trying to sleep with them on usually doesn't work for me. And, of course, eventually, I have to get up from the bed to use the bathroom, rinse out my tea mug, or get some thread/yarn/whatever. Every time I got up, even if it was just for a minute or two, my feet would freeze again and I'd have to start the warming process all over again--and veering between cold and hot is exactly what I am supposed to avoid doing.
I use some slip-on trainers instead of slippers because I know I won't slip with them on. I've felt my foot sliding in the past when wearing slippers or socks and I have no desire to take another tumble. They are fine for the purpose, but they have a very thin sole, so the cold seeps right in. I stuck in a couple of store-bought insoles, but they didn't help. I considered using some wool yarn to knit or crochet some insoles, but never got around to it. Then Bill got me a bunch of roving when an Irish online shop was closing down and having a big clearance sale. There was a brown roving that was not merino wool, and so coarser than the others. That was particularly cheap, so he got several of those. I saw it and thought, 'Insoles. I could needle felt some insoles.' So I did!
I hope you are warm and comfortable today, too.