Hello and welcome to the NeuroTalk Support Groups.
I'm very sorry to read that your daughter has been ill for so long.
I just wanted to leave the links to a few of the forums here that may be of help to you both. I'm sure you'll find great support and information.
Fibromyalgia and Chronic Fatigue Forum
STICKY - The Vitamin B12 Thread
Vitamins, Nutrients, Herbs and Supplements Forum