Hi, I am new to this site and need some advice. I adopted my first GSD from a shelter where I volunteer 2.5 years ago and she is now a 4.5 yr old, spayed female. She came from a neglect situation and missed the first couple vital social years locked in a bathroom with another GSD used for backyard breeding. I got her when she was 60 lbs. Obviously we did a normal vet check and tried different foods to entice her to eat. I figured it might just be stress from being bounced around and the other dog she was with was a RG of food and she had some bite marks on her face (shallow cuts). I have tried hand feeding, raw feeding, cooking, making eat a game with playing Frisbee (her all time favorite thing to do), food with training, leaving it down for 20 minutes and giving her time limits, switching different products I have tried evo, taste of the wild, nature's logic, california natural, natural balance, and so on that I have lost track. I have tried adding toppers, moist food only, putting it in kongs, I add hotdogs which is about the only treat she thinks is a good deal, but not even consistently. It is like she will eat when she wants and when the moon and stars align. I have been to the vet multiple times over the first couple years of having her with no abnormalities on ANY of the testing. I have used a couple vets and they both originally believed it to be behavioral because she was a very repressed dog for a year and a half and this past year she has really started coming out of her shell and is much more confident and happy. She used to be very shut down so I listened to them however, with her becoming a well-rounded shepherd I was hoping the food issues would change. It hasn't. This past fall I started some serious work ups for any medical abnormalities. We went to an internal medicine specialists and tested for Addisons, EPO, ran chemistry panels, another CBC, sent fecal out to specialty lab, ultrasound and I am not sure what else. We realized she is on the low side of B12 so I now give injections and we are shooting for the possibility that although she does not have exocrine pancreatic insufficiency maybe treat her for small intestinal bacterial overgrowth. She is now on an antibiotic for that and weekly B12 injections and it has been 2 months now with no improvement in weight or appetite. Her teeth are clean, she is energetic (5 mile walks/runs daily and Frisbee games), her coat is shiny, stools are a normal consistency, and I think the only abnormality is she gets yeast infections in her ears sometimes. She appears to have no N/V, diarrhea, fatigue, weight loss, or pain. Basically, I don't love the idea of keeping her on an antibiotic if she doesn't have to be and I was hoping someone out there has any ideas I haven't thought of or has had experience with a skinny GSD like this. She is a good girl and I am new to this and would love to give her the best rest of her life that I could so I am open to any ideas or comments that I am going crazy and this could just be normal sometimes. THANK YOU!