Suzanne, I had a similar experience with my mother, we were in A&E for 10 hours before she was seen by a doctor, and wasn`t allowed any food or drink in case she needed surgery.
She had Shingles.
I wrote a very strong letter of complaint to the Hospital trust, giving as many details as I could, and there was a full investigation.
She was admitted to A&E a few months later and had far better treatment. It was obvious my complaint had been taken on board.
If you make a formal complaint it will make you feel better, only I hope the hospital you find fault with is not the same hospital you work in.
Take care xx