My dog is a two year old pit bull who is not spayed. for the past week she has been carrying around her squeaky toys and stuffed toys in her mouth and wont give them when i ask, but will if i grab them. we give her all the attention in the world, but she will still whine and go crazy and search for them if we hide them. and when ever she will get up shell pick them up and carry the toy. she'll wrestle and play with them and fetch them but when we are done she'll start to whine. she has had a litter but that was almost a year ago. she just started acting this way. and to top the fact my chihuahua has started to act sick and throw up and poops all soft. hes not wanting to eat and he was a really annoying dog always bouncing everywhere. im so sad right now i cant figure what is wrong with my baby girl and its driving me crazy im so close to taking her to the vet but i cant afford it. ive searched online and all i could fine was something bout her motherly instincts but i doubt that is the answer, it just doesn't add up. please help me.