@WitchyWoman How was Juba (?? Is it Juba?) diagnosed?
My first cat, a DSH, was diagnosed through biopsy. I wouldn't let them biopsy Taji because his symptoms were identical; it was obvious it was the quail that was causing the problem since it was the only thing he would eat, and the vomiting stopped when he stopped eating the quail. He is still on a hydrolyzed kibble diet and will stay on that for a year to give his intestines sufficient time to heal and then I'll try to wean him back on a raw diet.