My dog, Boo, was at the vet Monday for routine stuff. She got vaccine shots and her rabies shot and a wormer ... her annual visit. Saturday, I noticed a grape-sized lump between her shoulder blades that you can see if you know where to look. It doesn't seem to be "attached" ... her skin is loose (the docs think she has some sharpei) and it almost feels like the lump is in the skin and I can kinda feel a raisin-sized harder lump inside the softer grape-sized lump. Boo is microchipped ... I think it is in the back of her neck, higher than her shoulder blades, but I'm not certain. Doc usually gives shots in this area between the shoulder blades. Please tell me that this lump is just a non-concerning reaction to her shots. She doesn't care if you mess with the lump, she is eating, sleeping and playing like usual. Anyone see something like this on your dog before?