I'm missing the Jack Russell, who spent the night at the vet. X-rays seem to indicate a lesion in his neck muscle from a bony spur. This situation is giving him arthritic pain every time he turns his head to the left. They think.
Even in his pain, he has thoroughly entertained the vets. They were in hysterics on the phone yesterday. Jack really deserves an Academy Award for playing the part of "sick doggy, sick doggy" (rather like the pic above, ears pinned back, sad eyes), but... only when someone looks at him.