BB has a mild neurological issue which causes her head to tilt and her balance to be a bit off at times - otherwise she is a normal, silly puppy with lots of energy! There is no treatment or medication for her condition and she is not in pain. BB loves to play with everyone and everything - other dogs, toys, cats, hands - you name it and she thinks it's a toy! She is going through a doggy door but hasn't fully made the potty connection so she does also use potty pads. She is a tiny girl, only around 4 lbs at 4 months old, so she should be under 10 lbs when fully grown.