It's totally normal, don't worry! Babies' appetites vary quite a bit, and she may just not be hungry. Also, they go through lots of phases as they discover their tastes and preferences, so it's not uncommon to only eat one food for awhile (like pears) or to temporarily refuse to eat. Keep offering, and if she isn't interested, try again at the next meal. Don't force the issue or get frustrated...she'll come around!