Olivia

So Olivia started full time pre-school last Monday the 25th. She was really excited to go. She gets to eat lunch at school in the cafeteria and we qualify for free lunches. So that's all fine and dandy. She has made friends with two boys, Dominic and Jalen, and a girl, Aliveea (pronounced Aw-live-ee-ah) almost like Olivis'a name. So far her teacher says she has done well with sharing and listening and things like that. Needless to say her first week of school was good.
I have had to ask the teacher for a weekly report on Olivia's behavior. Olivia has a Dr's appointment this Wednesday so I can talk to her teacher about getting Olivia into a behavioral specialist again and be evaluated for ADHD as well as getting her asthma checked again. We have to get her astma checked just about every three months. Anyway we have been having problems at home and out on the playground with Olivia. She can't seem to share anymoe and she tries to be queen bee. Not only is she verbally bossy but she is hitting, kicking, pushing, yelling, screaming, and lying. She is like this with everybosy. There is no exception to anyone. I have had a little girl's parents, of whom Olivia plays with on the playgorund, come over to our house twice to talk to us about Olivia bullying not only their little girl but the other children as well. I mean I was told Olivia had been kicking this little girl in the chest and leaving bruises because this little girl wouldn't share her M&M's. It's frustrating because I don't know what to do, and it's embarassing to find out that my little girl is the playgorund bully. I don't think I should have to sit out there for hours on end watching her play when the playground is like 20FT form the back door. She does all this stuff to Alex too.
At home she screams at the top of her lungs at anyone nad everyone over EVERYTHING.Even something as little as going potty because I saw her holding herself. She doesn't listen to anything she is told and sometimes does the total oppisite of what she was told just to make me and her dad angry. Then gets mad because she is introuble...? How does that make any sence?
If we tell her to do something she will not only scream but throw herself into everything and cry over her being told to do something. It's kinda hard to explain unless you have seen it and experienced it yourself. I have tried taking toys away, t.v., the computer, grounding her from going outside, taking awau treats, timeouts. . . I don't know what else to do. ADHD runs strong in my family. From what I have read about and experienced myself with my brother and older sister and myself, I believe I am seeing signs in my daugheter. I am hoping this time the specialist will actually listen to what I have to say and actually observe what is going on and help me get something done about Olivia's behavior. I think by getting her onto some medication it will help her succeed in the future. I am at my wits end with this bullying, lying, constant crying and bad behavior. I love my daughter way to much to let this go un-noticed and not taken care of before it becomes a bigger problem than it already is.