Hi Dee,
I am so sorry you are going through this Dee. I have no answers but I am a hospice nurse here in Cleveland. I hope and trust you may find comfort for your parents and yourself in the time you have left together with hospice support and guidance to ease your burden and face your normal feelings. The process of dying is heartbreaking but I firmly believe there is grace beyond the pain and suffering.
My thoughts and prayers are with you
Janet