
Hi,
Have you had a good look round the kennels so that you know that she is going to be in good hands? If you have and you are happy then this should help to put you at ease ;)
I always used to look round the kennels before I booked my dog in and made sure that I was happy with the staff and the surroundings and that they were happy to feed the same diet etc. Honestly, you will be amazed, dogs are such resilient creatures that within a few hours or days they settle very well and when you get back you will wonder what the fuss was about :)
I had to put my rescue GSD in kennels last year and was worried sick about her incase she thought that she had been abandoned again, thankfully, she was fine and didn't want to come home, I was quite jealous of all the love and fuss she made of the kennel owner who treated her as if she was her own

My 2 dogs are with me 24/7 also, but believe me, they do survive without you, even though I sometimes think we like to believe that they cant. She'll be fine, try not to worry :)