I have an 11 year old who doesn't want to do anything unless it fits into a rhythm and or "evens out". She must have a dependable schedule or she is very uncomfortable, angry, teary. She recently has begun getting close to throwing up. Last week, she did not want to go to her fathers (divorced) because "there are 3 of us at home and 4 at his house. It's not the same at both places. I like 3 here and 3 there." She is very intelligent and has won several poetry classes at area colleges. Everyone adores here personality and she has very sweet friends. However, she won't go to sleep overs at friends houses if there isn't a certain number of people there so she can feel safe. Does she have a mental disorder? Ex husband is throwing a fit that she doesn't want to visit him.