Hi Valerie, that could mean a lot of things. Have you spoken with a doctor about it? Heat therapy (ie squeezing a Hand Warming Grippie) may help. Hand Yoga might help. I hope your hands are feeling better.
Hi Adam - to strengthen your wrist, you really want to do wrist-strengthening exercises. Do exercises like Motorcycle can help. ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-JtyZC-sG4WM.html