Welcome to YT. I am so sorry to hear about your baby. Hopefully the vet will have some good news for youl and your baby will be as good as new asap. I also have a larger Yorkie at 6.5 lbs so I have never had any concerns regarding the Hypoglycemia. I know you can buy Nutri-cal at your local pet store and it should help if that really is the issue. I know tinys need to have food and water often to avoid this problem to prevent their sugar level from getting too low. Yes, it can be overwhelming in the beginning but it does get better. Hang in there. I sure there are lots of people on this site who can further help you.