So, in the 4 weeks I've had my Bella she's has more than doubled in size. I mean lengthwise, heighth, etc. I know she's still a baby (12 weeks old) and she's going to be growing, but I'm also wondering if there's a limit to how much she should be fed a day. I have a tiny nibble bowl and I've been refilling it like twice a day. Is that okay or should she only get food in her bowl once a day?