My dog, a cross between a poodle and a labrador, feels like it's attached to my leg all the time by an invisible piece of string. Every move I make, it follows. Wherever I go, it's at my feet. It also seems desperate for the tiniest little titbit of food all the time. I've never ever given her anything but regular meals. There are other members in my family but I am the one she follows everywhere. I need some space sometimes. Are they all like this?