The specialist is a great idea. I agree with Ellie May, that this sounds Liver related.
Try not to freak out, you have to be strong for your baby. IF she has a Liver Shunt, or MVD or Liver Disease, please know this isn't a death sentence, with proper treatment, diet and supplements she can live a happy life
We are here for you, and may of us have Liver Issue Babies (including me
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Just be sure to post what the Specialist has to say, and any more teset results. Bring a pad and pen with you to write it all down