My husband surprised with an early Valentines Gift Friday morning....My 13 week old Yorksire Terrier...it was love at first sight...Then it was like being a new mom with your first born..As of Friday she weighed 2.4 lbs...WOW that it small...I have read alot about yorkies this past weekend and I have a few questions... She really get crazy (playfull) when after she eats and starts to pant really heavy or If she goes out to go potty she comes in and starts panting really heavy...She has dry food out at all time ( natures source ) then 3 time a day i also give her alittle wet puppy food (Wellness)...I know she eat fine but could she be low blood sugar from being over excited or cold? I did but Nutrical this morning and she loved it...I know this a dumb question to ask but I just want to be well informed when it comes to my new little baby... Thanks so much!!!