It may help to track your pain if you have flare ups and days when you are really hurting. When I was tapering off of prednisone for my polymyalgia rheumatica I would keep a 0 to 10 pain scale as I changed dosage every week or so. I'm not sure how helpful it would be but it's another talking point for discussing with your doctor...what's causing this pain? ☺ I have an Apple watch and Kardia band so I track my BP every morning and take an EKG which also write to the Health app as well as their own app. I'm really not sure it's helping but makes me feel better to know all is well when I get good readings. They do give a lot of what seems like false readings too and that was a little disconcerting until I realized it. I just read an article somewhere that the new tech on the Apple watch may lead to a lot of extra doctor visits that aren't really needed.