I'm thinking that perhaps the trach tube caused damage, or possibly she has anesthetic poisoning. I tried to do a search on the symptoms of anesthetic poisoning but couldn't seem to find anything. Right now she is laying down and not coughing and it's two hours until we go back to the vet. Maybe we are finally on the way to being over this. My greatest fear is that it will return when the steroid shot wears off.
It's good to hear that your dog is doing better. Since having her teeth cleaned caused so much trouble, buy yourself some toothpaste and a toothbrush designed for dogs and brush her teeth for her at home. Maybe doing that would avoid any further teeth cleaning done at the vet's.
Glad to hear you went to the vet. Keep us posted.
"Right now she is laying down and not coughing and it's two hours until we go back to the vet. Maybe we are finally on the way to being over this."
May Miss Maggie be on the road to recovery! Please keep us posted. Take care.