Jen, you really are being pulled through the mill and i'm so sorry you haven't had that desperately needed 'me' time. You work so hard ensuring Khalebs well being and so should the staff at his early learning centre. 2 adults to 5 special needs children, just doesn't sound enough. In my pre school playgroup its 1 adult to 7 children inside (and that at times can be a handful) and 1 to 3 outside . 2 people coping with Khalebs needs and those of 4 other children, distractions, teaching, feeding and changing all at once is some challenge. There trained to do a job, they have Khalebs list of requirements, so they should be getting on with it, and to the letter.
I hope they see sense and you get the issue resolved soon, so that both you and Khaleb can start enjoying this experience,
Suzi x