We rescued a terrier mix a few weeks back, we were told that she is UTD on shots, fixed and house trained. So far that has seemed to be true until recently. We have fostered many dogs for this Animal Control and when a dog needs fixed they take them to a clinic. Every dog or cat that has been fixed gets a little tattoo. She doesn't have one. She had been in a foster home for a couple months before we got her. The people that were fostering her continue to bring dogs in and I hate to say it but they don't keep track as to whats going on. If a female gets pregnant they just keep her until she has the puppies and then they work on finding them homes. Anyway recently our girl has been going crazy!! The sweet dog that loved everyone is now growling at any dog who gets to close when she is eating, playing with a toy, on her bed or just sitting in the living room. At the same time she is constantly crawling up in any humans lap. When we got her she woulnd't eat anything now she eats everything in site, did I mantion she's getting fat? What's her deal??? Someone said she sounds like she's pregnant, which I am starting to wonder just because she has no tattoo, or scar on her belly. Any Ideas??