Hi- I have the same issue you describe. My doc Dx it as carpal tunnel. I, too, like cross stitch and have had the same pain and burning. I found at the craft store a 'glove' of sorts, also you can get from Wmart or Target, an spandex glove that is tightened with velcro. It really helps me with the pain and burning during sleep, but it also helps alot when I am stitching. If I don't use it, my fingers get so numb that I can't feel the needle and drop it. Try the wrist stabilizer and I bet you will feel better. The fingers of the glove are short so you can bend your fingers and manipulate your needle. Good luck, and let me know how you are doing.
Peace!