My dog, a year old Pit Bull female, has been sick all this week. She has diarrhea, and won't hardly eat. I haven't gotten her vaccinated yet because I can't afford to yet. She is due for vaccs this month. I have changed her food..about a month ago. She eats everything..goat pellets bunny pellets and well she's just gross!! She has always gotten snacks from the yard, but it has never made her sick. She eats the dog food I changed to, and doesn't seem to mind. I just cant figure out what's wrong with her and how to fix it. I have given her ginger powder in some peanut butter to soothe her tummy for the last couple days and it has seemed to help. She is losing weight and when she lays down she shakes like she's hurting. She hasn't ever acted this way before. My other older dog has a cast iron stomach and could probably eat concrete with no problem, but this little girl is having some gastro issues! What can I do to put some weight back on her and get her over this whatever ailment? I think maybe she got into something outside, but would that normally last for a week?!?! She's pitiful and I hate to see her like this! Any ideas?