I still need to suggest that you take him to a neurologist, or a vet that specializes (or owns) small dogs (or better, Yorkies). Spinning is not a normal behavior, and is an indication of hydrocephalus, which can be caused by many things. An x-ray could confirm/ rule out this and also check his spine and neck for any congenital defects, or at least indicate the need for further investigation. There are medications that he can take that will help resolve this behavior.
How old is he now? Bile Acid tests aren't really reliable in young puppies. I believe some are done routinely at 16 weeks (anyone correct me here) and later. Was any other bloodwork done? (looking for basis chemistries: esp. ALT)
Just for some background: How old was he when he was given his first set of vaccines? What exactly did the breeder give him? And he was 9 weeks when he got the second set? And what specifically was he given?
You have the option to share with us or not... I'm not trying to diagnose or be overly nosey... but I strongly feel that you need to discuss all this with a vet that is experienced with Yorkies, and with vaccine reactions. I also feel very strongly and am urging you to get his complete history together and have further testing done to resolve his circling behavior
before his 3rd set of vaccines is given. If this is in any way resultant from the vaccines, continuing his vaccination schedule could be extremely detrimental to his health.
I realize many people believe that vaccinations are a safe routine done with dogs and most times there are no problems. But when there is a questionable reaction, further investigation is needed for the few pups that do experience problems. Also special care must be given throughout the life of these pups, as their bodies can be reactive to other medications as well, so any necessary medical treatment will need to be done keeping this in mind.
It may be best to get him on a minimal vaccination protocol (like the protocol suggested by Dr Dodds), and under no circumstances allow him to get any vaccines done with the Rabies vaccines (separate then by 3-4 weeks to allow his body to properly process and recover in between)
CANINE VACCINATION PROTOCOL – 2010
MINIMAL VACCINE USE W. Jean Dodds, DVM Note: The following vaccine protocol is offered for those dogs where minimal vaccinations are advisable or desirable. The schedule is one I recommend and should not interpreted to mean that other protocols recommended by a veterinarian would be less satisfactory. It's a matter of professional judgment and choice. Age of Pups Vaccine Type 9 - 10 weeks 14 weeks 16 -18 weeks (optional) 20 weeks or older, if allowable by law 1 year 1 year Distemper + Parvovirus, MLV (e.g. Intervet Progard Puppy DPV) Same as above Same as above (optional) Rabies Distemper + Parvovirus, MLV Rabies, killed 3-year product (give 3-4 weeks apart from distemper/parvovirus booster) Perform vaccine antibody titers for distemper and parvovirus every three years thereafter, or more often, if desired. Vaccinate for rabies virus according to the law, except where circumstances indicate that a written waiver needs to be obtained from the primary care veterinarian. In that case, a rabies antibody titer can also be performed to accompany the waiver request.