Good morning!
Well, when Harry was little and shaking, I would always check his gums - if they looked pale I would give him some nutrical.
Harry's now a (very!
) big boy - but he still has his shaking episodes. If he's chilly I put a sweater on him (whether he keeps it on is another matter!)....they're that much closer to the ground, and can feel any draughts that we can't.
He also tends to shake through anxiety - for instance when he knows my husband is about to go to work...as long as you eliminate any 'nasty' possibilities, I think maybe it's just a 'Yorkie thing'
Good luck, Sally + Harry x