I’m sorry to hear about your dad. The good thing is he is no longer suffering. My mother suffers from this aweful disease as well. She is in the late stages and I pray every day that god give’s her a period where she can talk to whom ever she wants effortlessly (she can’t speak at all anymore) and her suffering will ease.
We did finally figure out a way for her to communicate and has seemed more relaxed in the past week or so. The family knows she will receive her wings before to long.
I hope you and your family are doing well.