Rabbit problem! Just moved her outside?

ok i just put my hutch i built, outside. Two of my rabbit already live outside, so i put them in the new cage. They are fine, but my new rabbit Belle, that was in it when i was waiting for the snow to melt. So the cage was in the garage, and she was fine when she was in the garage. But when i moved it out around 3 hours ago Belle started to sneeze. She has a little snot on her paws but i washed it off. Ok but anyway, i was wondering if she has snuffles. Or is she allergic to other rabbits( i don't think its that because she has been around a rabbit for like 5 min but it started to be mean to her so i took her away). Or is it some other crazy reason. I am taking to the vet if it keeps up. Thanks for any help I love her don't want her to be in pain if she doesn't have to be.