Hello!
First of all - hang in there! When I saw the time you posted I remembered back to the sleepless nights when I was first researching frantically for my six year old son. You are a wonderful mother to do all you are doing!!
I wondered if you have done any of the allergy testing for your child? Foods are a big factor for many kiddos but also the environmental triggers can be huge. I am wondering if perhaps there is something that might be triggering her there - molds, outside allergies, etc. When we had my son tested we were astonished to find that he was severely intolerant to flouride. Of course we were giving him a daily dose per our dentist's instructions and he was drinking flourinated water, etc.
Just a thought - if you haven't looked into this angle you might want to try. We did testing through Alcat but I also know Great Plains does this type of testing too.
As for supplements - we did find that B12 made our son's motor tics and behavior off the wall. We do give him B6 and that seems to help.
Hang in there!