My dad is 80 and has AD. He’s on 13.3 mg Exelon patch and 5mg twice a day Memantine. He also takes 3mg Vraylar to manage his hypomania. The split second blackouts and long sleeping times are the two big changes in the past two months. He also needs help choosing clothes, dressing, buttoning up clothes, doesn’t shave and will go days without changing clothes or taking a shower if I don’t make him. He no longer can use escalators safely and always an elevator over stairs. Dexterity I’m eating and opening any package is very difficult. Too many other things to mention here, but I think all are classic AD. I’m really concerned about the blackouts. The neurologist didn’t seem too concerned and wanted him to stay on all the meds. The internist said he’s dubious of the meds. His heart is fine. Blood pressure good too. Are the blackouts why he’s now sleeping more? Are all the other changes progressing more quickly because of the blackouts? He wanted to know if he was going to experience more? Each time he loses a little more that never comes back. I think if he’s had 5 in 2 months- the probability for more is high. Could they be TIAs? I’m worried about a stroke because another change is he hiccups all the time now too.
It may be that they're related to something else, but do find out.
The combination of blackouts, increased sleep and rapid loss of function are not likely a coincidence but the neuro may not feel there is any benefit to investigating further (I'm not saying s/he is right though). Sometimes you need to weight the pros and cons of investigations and treatment - in your best case scenario what would you like to see done about it? How can you accomplish that?