I'm so sorry you are entering into this world!!!! The distended abdomen is very scary as this can be a key symptom of PLE. Please make sure they do a Spec CPL that includes a TLI, folate and cobalamine levels and also pay particular attention to the protein, albumin and cholesterol levels. You've had him on great food, so hopefully this is a fluke flare up.
Many of us have had great results consulting with Susan Davis for supplementation that can help with many of these issues. She may be able to help you guys out as well.
Pet Health Pet Nutritionist Holistic Pet
Please do not hesitate to PM any of us who have been through similar issues such as my Sissy being dianogsed with early stage PLE last fall.
Sending our prayers for a speedy recovery and a diagnosis that can be easily managed....