Day before yesterday Willow looked like her hair on her back was standing up and it is a huge bump. She seamed very sore that day, I gave her some asprin and yesterday it was still there, I hoped it would go down. She doesn't seam as uncomfortable as she did the day before but it's huge. I had a doctors appointment yesterday so I was late to work and I could not ask to leave early to get her to the vet so her appointment this morning. I'm sure they will have to shave it to see it, that's going to look strange....send her good doggie vibes.