Good luck for tomorrow. Its the not knowing that is the problem - once you know what the issue is you can deal with things.
I am a real worrier and the only a advise i can give is worrying is like sitting in a rocking chair - a waste of time and it gets you no-where. It does not stop me doing it though.
From what i have heard Sue Dyson is really good with the animals but can be a bit brisque with the owners - but you could not be in better hands.