My great uncle has age related Parkinsons. He has hallucinations sometimes (I think from the meds). Very smart guy - was an electrical engineer.

He would talk to me on the phone about telescopes/space and such when I was a kid cuz I was really into stuff like that. Big hippie too - I wonder if it was from the 40 years of weed (Don't quote, just a guess).

I hope your friend will be ok but strokes are never a good thing...