Posting in desperation after 10 weeks of veterinary confusion and mystery. Our Ridgeback/Malinois puppy (aged 7 months) for the last 10 weeks has had ongoing vomiting and/or diarrhoea. Pretty much every second day he is miserable for a good 8 hours, retching and heaving bile into the garden and refusing food/water. He often vomits blood or partially digested blood. The days in between he’s absolutely fine and you’d think nothing is wrong with him (other than very inconsistent stools - sometimes fine, sometimes just liquid). He’s had antibiotics for giardia, we’ve switched foods, he’s had a stool sample (clear), a blood test (clear), an ultrasound (no obvious masses or foreign bodies, slightly enlarged lymph nodes which is apparently normal in a puppy). He’s now on another round of antibiotics and is taking two stomach liners, and for the last week has been on Royal Canin Gastrointestinal vet diet (both kibble and dried). The last week has been the longest he’s gone (7 days) without having a vomity day, but this morning he’s unwell again, pooed inside overnight, very gurgly tummy, and has refused breakfast (so I can’t even get an anti-nausea tablet into him). Has anyone had a similar experience with their large puppy? Any ideas, thoughts on things that I should ask our vet? We’re awaiting the results of another stool sample but I fear that this will provide no clues again. The likely next step is a gut biopsy but at $1200 for this (in addition to the $1000+ already spent) I’m keen to exhaust all other avenues. Any/all suggestions sooo welcome. Thanks.