My two 7 1/2 week old 2 pound Chihuahua puppies ate really well this morning (about 1/8 cup each), but they haven't eaten hardly anything else all day. They've eaten about 8 kibble everytime I've tried to feed them, but this last time they haven't eaten anything. I've tried to feed them about 4 times since 5 pm and it is now 9 pm. They ate their good morning meal about 10 am and then didn't eat again until around 5 pm (because I'm a bad mom and didn't realize the day had gone by so fast). At the 5 pm feeding they hardly ate anything and really haven't eaten anything the other times. I don't know what to do because the vet said they need to eat about every 5 hours or they can bottom out on their sugar and die. They haven't been acting funny, they're not excessively shaking (they're Chihuahuas so they're going to shake some) and they're not wobbly. They sleep a lot and the vet said they have a slight virus, but he wasn't concerned about it, but now that they're not eating I AM concerned. My vet is closed. What do I do?