extreme Kindergarten bullying

I came to this site by looking up the books that my elementary education teacher recommended to the entire class. I am a teacher's aid at an early childhood center, an elementary education major, and most of all a mother. My 5 year old daughter started Kindergarten this year, and it has been the most terrible experience I could have ever imagined. She is not new to school, she has been in a preschool since she was two and was in Montessori school before starting public Kindergarten. She excelled previously. Now she worries about her safety daily, instead of her lessons, and the school is being no help.

About the third week of school she started crying in the morning and then began actually making herself vomit in order to get out of school. She was coming home with bruises that I thought were from rough play at first. She was able to read going into Kindergarten, and suddenly she started saying she was "just a stupid baby" and refusing to even try to read (something she used to enjoy). The teacher started sending home notes of her sudden behavior problems. She would act up and sirupt the class until she had recess taken away each day and then behave. Finally it all came together when I gave her a bath one night and found marks all over her chest. She started crying and telling me about the bullying she was recieving, starting with one boy and then branching off to his friends. She had been held down that day and pinched on the playground while being told that she didn't even have "titties" so she was just a little baby. They constantly pick on her and call her a baby, this day had been the most extreme.

Since this incident I have been in that school speaking to her teacher and the principal and going all the way to the superintendent and school board and all I get is that she is too sensitive and a "boys will be boys" attitude. We are to the point where we are now trying to move to get her to a new school or else I will have to pull her out to homeschool her. I had quit my full time job to go back to school myself and financially we cannot afford a private school. I feel helpless. She is seriously hurt by this, and didn't even understand what the word "titties" meant  because she had never heard it before. The school refuses to do anything since there have not been more physical bullying. But she still get the "baby" name calling and is teased and tormented. She cries and vomits at least a few times a week begging not to go to school. She hates recess and tries her hardest to get out of it. She is very slightly toungue tied, and her doctor had suggested a sugery to help fix it but there are no gaurantees that it would help her speech, and her speech is barely affected at all actually. She couldn't even qaulify for speech therapy it isn't that bad. I don't know if that is why she is being singled out as a baby, but her voice does have a younger sound to it sometimes even with a very extensive vocabulary for her age.

To be honest I was shocked that bullying even happens at this age. These are 5 and 6 year olds. I do not know what more to do, as i have followed all suggestions and nobody in the district will take it seriously and they simply think she is being too sensitive about it. I am posting this wondering if any other parents have successfully gotten a school to deal with the bullying issues or have dealt with it at this young of an age. I feel as though I am out of options except for moving at this point, and hoping that if bullies target her at the next school that it will be a school that will take it seriously. This has destroyed my daughter's spirit, I feel like she is a different child now, scared and shy all the time when she used to be bold and confident.

Thanks for listening to me vent about it I guess.