My daughter is now 5 and in kindergarten. She has always been a "hand full & spirited", but lately she is out of control. When she was 27 months old her younger sister was born & she completely seemed to lose her mind! She had very intense night terrors and hours of tantrums day and night. She would physically harm herself. At that time she began play therapy & improved dramatically. At age 4 she began to have hours of tantrums a day and very angry/ overly emotional. She cannot go longer than an hour w/out hitting her sister. Now she is in a partial day treatment school and receiving care. They have said her diagnosis is mood disorder not otherwise specified... Is this bipolar?