One of our girls has/had sour crop. We followed advice from here and I carefully massaged crop (she vomited once and I held her forward/down as advised), fed yoghurt, ACV in water, moved onto scrambled eggs. She appeared to be recovering but yesterday went downhill. Had yellowy watery poop and now can't bear weight. I am trying to syringe small amounts of fluids into her but she is not keen. Crop no longer feels full. She is not looking good. None of the local vets can help apparantly. Any suggestions please?