Thank you everyone. Sandy was 13. She was having a hard time in the past year or so with her back legs, i guess arthritis and the fact that she had ruptured an ACL three years prior. Other than that she was a happy dog, but that is to typical of Goldens. On Sunday she struggled to get up, and when she did, she was shaking like a leaf, her eyes were twitching, head cocked to the side. She laid back down. After that she tried several times to get up and she couldn't. It was so hard to watch. We called the vet and he told us what he thought over the phone, that it was vestibular syndrome. We made the decision that night to have her put down the next morning. Some of the factors we based our decision on were: we both work and could not stay home with her to bring her outside and do her business, plus i just did not want to leave her alone like that period, her age, her bad back legs, and no guarantee that she would recover. I think that we made the right decision, although it was very quick, but i felt some pressure from my husband too.
I guess it's done and now i just have to accept that we did the right thing. The important thing is she is not suffering.