"My Daughter Keeps On Waking Up At Night, She Has

"My daughter keeps on waking up at night, she has brown circle around her eyes and she is conistibated and her hair is very short and does not grow a lot, very bad temper and very fuzzy eater, sometimes will loose concentration in the class room or switch off or say I'm tired"
This is a follow up question for this question asked a while ago for I have a similar problem with my child. She was diagnosed with Autism. As part of her regimen, she was taking Methyl B12 shot prescribed by her Autism doctor. The shot will help her talk for she has severe communication deficit. Lately, she was waking up despite taking clonidine 0.2mg at night. I have family hx of Grave's disease and hypothyroidism. I noticed lately as well that her hair texture change.
You mentioned that the cause of the problem might be Vit B12, is it too much or low level. She had a Thalassemia B trait as well.