I just wanted to welcome you to the board and wish you some peace with your journey. It is definitely not an easy journey that we have all taken on but with friends to talk about it with and support each other it does seem less hard.
You may want to consider if you are eating enough calories in the day. Also like Abby said, find something to do with your hands. It is a wonderful distraction. Myself? I love to do counted cross stitch.