Books and presents for your DD look at things she like's now.All of my DC have followed on from things they liked when they were little and have carried them through with them as they've got older.
For example my DS13 when he was 2 he loved to build things and make amazing constructions and he loved drawing.He loves Lego now and wants to be an architect when he's older,he loves anything he can construct and he still loves drawing.
Little girls in my experience from the age of about 3-7 love dolls,between 3-5 they seem to love things that help them with pretend play,shops and shopping,kitchen bits ect.Both my DD's still have cuddly toys from when they were younger that are still very much loved.
As they get a bit older making kits(where they can make they're own cushion,cuddly toy,purse or bag)have been popular with lots of little girls I know from about 8 years old.
Hula hoops and skipping ropes are popular as well.My dd and Great DN are both stationary mad now,I can remember being like that as well from about the age of 10,I still love stationary now.
I have days where I want to hide way as well.I think it's completely normal when your seriously ill.Being in constant pain isn't something anybody should have to go through and it's really hard.
Is there someone you can speak to like a counselor?are you part of a support group?xx