Yup, same thing happened to Garrett. He got his annual shots and about 5 days later there was a bump between his shoulder blades. I freaked out
, but it didn't seem to bother him one bit. I called my vet, and she said not to worry, that it was a common side effect of the shots. She said if it didn't decrease in size gradually day by day, then I should bring him in. Well, it's been going down slowly, and it still doesnt bother him when I touch it.