
Can you advise what tests have been done and conditions ruled out?
For example, when opened up, were biopsies done of the
entire GI system & tract?
Have all food allergies, SIBO, EPI, Addisions, Pancreatitis, Cushings, IBD, dental conditions and cancer all been ruled out - separately? Have kidney & liver functions been tested? And when did your vet last examine your dog?
If your dog has any of the above conditions (or possibly a combination of 2 or more) there may be very restricted food types and ingredients which she can be fed. This being the case, when offered foods containing ingredients which make her feel nausea she will - quite naturally - be unlikely to eat them. It is very important to ascertain whether there are medical reasons and even if tests have been done already for all of the above it would still be worthwhile discussing with your vet which ones should be re-done. For eg, if your girl was on steroids for an inflammatory condition (either tested for or as a preventative measure) these drugs often negate the findings when tests - including biopsies - are carried out.
What, if any meds does she take? Have you tried a novel protein such as venison (and, seriously, kangaroo / crocodile - basially weird & wonderful food stuffs) with her? I appreciate that finding novel ingredients can be very difficult and require the help of specialist suppliers.
It is vital if going down a "novel" diet route that NO other foods, bulking agents, treats, tit-bits or snacks are included.
Please update when you can. best wishes, Teri :)