Snuzie,
I understand how you feel. My dad is in the end stages of life. Not sure how close or how long. I am caring for him and watching his weight go down, his eating and drinking less and he is sleeping more and more.
I hate watching him go thru this, to start to become a shell of the man he had been my whole life. But I have found great peace in his final stages of life and in the thought that soon he will be pain free and with his brother.
I agree with BreeP; you need to get out and see him while he is still on the earth. The great comfort I have found in helping my dad so out weights the sorrow I have in his coming death.
I do have the same feelings of he should just get it done now. I feel bad when I have them, but I remind myself it is a normal feeling when someone we love is in pain. And I do truly believe that great peace is waiting for him once he lets go of his body.
My thoughts are with you and your family,
Natural Peace