I would add to this that having a relationship with a Vet is a very prudent thing...it is like insurance you hope you don't need it but if you do you will be glad you took the time to understand it and get it.
I have 30+ balls now only 2 have been seen by my Vet. Neither were sick but I wanted to start building a relationship with my vet in case I needed here. This relationship has allowed me to have all my animals tested (fecal and such) without having them seen (saves a ton). I also feel comfortable with the Vet that if I needed something she knows me well enough to trust what I am telling her.
Hope this helps.