Ok last night my 2 bigger dogs charged in my room and chased Oreo. As soon as I got the 2 big dogs out I checked on Oreo. She had a small wet spot on her side ( small than a quarter) but no blood, bite marks, or any other visible injuries. So we went to bed. She didn't come sleep with me all night like she usually does. This morning she was hiding in the closet. She got up and went in the bathroom and vomited a thin brown fluid. I checked for blood and didn't see anything. She is walking a little stiff so I know she is at the very least achy. I offered her a can of food but she looks disinterested. I won't have a vehicle till 4 tonight and the closest vet is almost an hour away. Is there anything I can do for her till my husband gets home with the vehicle? I have her in a quiet room with several dark areas she can rest in.