I’ve recently started using a cane when I go out for a while to ease my back pain and I realized I don’t know what the allowances are for using it on shabbat. My assumption is it’s a medical device and so it’s fine to use but I’d like to hear other people’s thoughts. I’m also curious about if it changes since I sometimes use it preemptively. Meaning when I leave the house I’ll begin using it even though I don’t /need/ it yet since using it extends the time I can be active before I need to stop. Should I have my partner (goy) carry it for me until I need it or is it fine for me to carry even though I don’t /need/ it yet?