It could mean lots of things. If she were my child I'd be quite concerned, though, especially if she has had any sort of knock to the head in the last few days. Concussion or brain bleeding can lead to pupils being dilated and behavioral chances. Untreated, these can result in permanent brain damage which is why it's worth getting checked out, especially when the afflected person is a very young child who can't accurately tell you how she is feeling.
Why not use a phone service (like NHS Direct) and see what expert medical opinions say?
Another possiblitity is that the child has been exposed to something she shouldn't have. Such as a food, drug or chemical, and that this has had a detrimental impact on her. Again, if the affect is persistant, medical advice should be sought right away.
Why not use a phone service (like NHS Direct) and see what expert medical opinions say?
Another possiblitity is that the child has been exposed to something she shouldn't have. Such as a food, drug or chemical, and that this has had a detrimental impact on her. Again, if the affect is persistant, medical advice should be sought right away.