OMG Shauna, you scared the heck out of me with your heading . .I thought something has happened to Missy . . .
I am so glad it is just for spaying . .although I don't blame you for being a nervous wreck . .I was in the very same situation not too long ago . . . the hardest part is waiting for the vet to call to say "she did great" . .still groggy but you can come see her now " . . .
I shall say a prayer for your both.
. .keep us posted.