You must be a wonderful person to take care of your grandchildren .Do you have help with them . Maybe a friend or reletive that comes in and helps with there care? Right now your going through a lot and perhaps some time each day for a break would help. Your not alone in being a senior and going through a divorce. It just makes it harder to accept after so many years. I kept wanting to ask why and I finally realized it doesnt really matter. It is over . Keep seeing your doc and keep posting .