I recently got a kitten at the age of 2 months. I've had her about another month and a half and she has shot up in size really quickly. I'm not a cat expert but it's pretty clear she's getting overweight judging by the size of her tummy. It's also concerning she's so big at such a young age. I only feed her a bowl of food everyday but she is still growing. Is this a health issue or should I be concerned?