[yoyo27]

I don't know if your dog has a chance any other time to be around larger dogs but it might help to let her be around some. Like does a neighbor had a large dog, or you could take her out and about a large dog when you take her to petsmart or where ever you go. We have a large dog so mine are not scared even if the dog acts tough. Zoie had a class with alot of larger dogs and she was the social bug in the class. Then they all before long was including and welcoming everyone like a bunch of school kids. That was when she had a class in obiedence. She was the smallest at 2.5lbs She is now 3.5 but she looked awlful funny in that class and I wasn't sure. She out did the biggest part of the whole class. Maybe you are scared and she feels that from you. Good Luck. Changes classes if it doesn't get better.