I don't want to complain... but...

I had a very frustrating day at work, which when you work at Kindercare it is a very common occurrence. Anyways, I walked into work today and went into my classroom only to find my cot cart covered with stuff... every time I turn around I am being told that there should be nothing on the cart, however it always manages to get filled up when I turn my back and then they get mad at me. Okay so the cart is covered and there are all these shirts on it, so I ask what I am suppose to do with the shirts, because I had no idea what they were for. When the Assistant Director snaps at me that they are for painting so that the kids don't get it on their clothes, I said okay, and turned around to go put the shirts away and then she decides to keep talking. Then asks very snottily and in the same down talking manner she was using if I am listening to her. I turn and say "yeah I am." Then she turned and answered the phone and I went on my way.
Now do you think that this is an incident worth a write-up? I was working I asked a simple question to which she was rude to me in answering and used a very rude tone, and then expects me to be happy that she is talking down to me? Then threatens a write-up for me. I am at work everyday on time, I do my job well, my kids like me, the parents like me, and I jump through the hoops they like to make me jump through. And she is going to write me up over this?
So honestly to anyone who reads this, do you think the action is justified? What should I do? Is there anything?

Ouch

I went to the Dr. today and he decided that we needed to do some bloodwork. I never worry to much about bloodwork I have donted blood many times. It hurt today though and it now hurts to extend my Right elbow, and my left arm is tender. Sad day... The first time she tried to draw the blood out of my left arm and it hurt and she said she was sorry, and then shortly after she asked how it felt, and my response "well it doesn't feel good" I guess I was a bit of a smarty pants... Anyways she had fun teasing me about my response while she tried to get the other arm.