Thanks for all the answers
I am not taking her back. I do feel its my price for getting her there. BUT I am not having to pay the 1000 dollar vet bill. The pet store is. And the are still guaranteeing her for a year. So I am taking an emotional gamble. If she has another attack or gets sick again I can still give her up. I would feel like a horrible person if i did it now. I am taking her to another vet who is a personal friend out of the area for a recheck. All tests came back negative. As for the abc she is still on the same one. It's a waiting game. I ran into one of the vet techs out shopping today and she called her the miracle dog. So here's hoping and praying. Will update with her progress