I had one go hypoglycemic once and it was so scary! Now I always leave dry food down that they can get to any time they need it. I have always found my Yorkies to be too finicky to only feed at certain times because they never want to eat what you put down when you put it down.
Though it sounds like yours might be a really good eater!
Two lbs in one month does sound like a lot but I have no real clue if it is too much. Leaving dry down always just gives me some peace of mind. If it makes you feel better I would go ahead and feed her again, but that's just me.
