Counting? Please help

[Cupcake79]

My nan had a stroke 3 months ago and has since developed dementia at a rapid pace. For the last week she has been counting constantly. No one can talk to her because she just counts. She is very agitated and keeps taking her pyjamas off even though she only has use of her right side.
We found out 3 days ago she has a water infection so we are hoping that this is playing some part in why she is so bad at the moment. Problem is, she is refusing medication, not really eating or drinking.
Can anyone recommend any activities she can do which may take her mind off of the counting. The stroke took most of her vision (we're still waiting for her eyes to be tested 3 months on) so she can't see the TV or read. She used to knit but I'm assuming this would be out the question incase she damaged herself with the needles.
Any help would be appreciated. This is very new to us and it's so upsetting to see.
Thanks for reading.

 

[Moleskin]

I wonder if playing music she's familiar with to her may help - or even singing to her something she knows well? Would she respond if you tried to talk to her about her children or husband or significant events or places - if you asked her questions about her past life she may respond.

 

[Tin]

A small cd player with ear phones, playing her favourite music, talking books even some of the old bbc radio comedy favourites like Tony Hancock. You may not need the ear phones. What about letting her count/sort playing cards. If you feel that it is unsafe to give her knitting needles, why not unravel old wool jumpers/cardigans and let her roll into balls, my mum did this for hours, I bought a load of old stuff from local charity shop and she rolled and sorted all, have not done this one for a while now and my mum is getting a bit of obsessive about sitting in our parked car so think I will introduce the wool again.

 

[Risa]

How about something like a twiddle muff or if your nan liked pets, buying her a cat or dog toy that breathes and makes a noise so that she could pet it? There are a couple of examples of what I mean below

http://www.amazon.co.uk/The-Beaulil...8&qid=1441874832&sr=1-1&keywords=twiddle+muff

http://www.amazon.co.uk/Perfect-Pet...4900&sr=1-7-catcorr&keywords=sleeping+cat+toy

 

[canary]

Has she perhaps lost language and is unable to talk, so now she can only count?
I agree with others, music is often a good distraction.