Multiple Sclerosis and Alzheimers

My husband has moderate Alzheimer's and I have Primary Progressive Multiple Sclerosis, not so moderate. I have a bury my head in the sand syndrome, I cannot quite cope with the "what ifs".

We are both senior citizens, as if that should matter. We still both have a dibilitating illness.
I fear his more than I do mine... I see him struggle, at times, lost in a labyrinth of seemingly unfamiliar objects in his own home! He is on medication, hopefully it will help slow down the progression. For him I wish a slow decline until the time comes....at least twenty years more of reasonable mental agility. I guess I wish it for myself and our family... may he remain mostly himself.