Julie
My 15 year old dog, Max, has DM and it looks like he is nearing his end. He can no longer stand, he is incontinent and he has trouble holding a semi-sitting posture - after a few minutes he falls over unto his side. He doesn't appear to be in any pain, is still eating and drinking. I have always wanted him to die peacefully and naturally with familiar smells, sounds and voices lulling him to sleep. But I worry that things will suddenly become horrible for him and he'll have to wait too long for the end-of-life vet to get here.
I clicked on your post hoping to get some reassurance that the end is not horrible with DM, even as I understand that every dog is different.