My Yorkie is acting weird lately (it's been happening more frequently).
Sometimes, he will run around, won't sit still, panting, shaking. He acts like he does during a thunderstorm (he's scared of them) but it's not raining and nothing has scared him. Nothing will make him feel better, it just goes away after a few HOURS!
I didn't think anything of it but it seems to be happening a lot lately. I read somewhere that it could be hypoglycemia (or something, I can't remember!

). Does anybody know what it could be (if anything)? Do we need to go to the vet to do some blood work?