Do not be intimidated by the school board, and always remember that they work for you. They do not know what is best for your child, you do. You are the parent.
Parents raise kids.
School boards only run schools. The law will usually say that if your child is physically endangering other children, then you must seek medical help or special classes. Remind them that medical help doesn't always mean drugs. If they tell you to sign a release for your child's medical records because it's the law, again ask to see the law in writing. You are the parent, you raise kids, they are the school board, and they deal in education.