Well, while petting and loving on Bella, our 3 month old pup, I felt a lump about the size of a small marble. It is soft, and moves around so I do not think it is growing attached to anything. It is on her right side at the back of her rib cage just before the hind legs and fairly high up on her side.
It feels like what my lymph nodes feel like when I am getting sick. Also, it does not seem to be causing her any pain.
Anyone have any ideas?