These are quite a bizarre set of symptoms. Certainly the vomiting, anorexia and lethargy could reflect pancreatitis (diarrhoea is in fact uncommon) but this does not explain the neck/head pain. Considerations would include organophosphate or lead poisoning, rabies (in the right areas where it is present), FIV, FIP, inner ear or middle ear disease, granulomatous meningoencephalitis, dysautonomia (Key-Gaskell syndrome), infections of the brain (Toxoplasmosis, fungal infections, others), brain tumour, vaccine related encephalomyelitis. Also disc protrusions may cause neck pain and result in vomiting. Hope these are useful but this is not an exhaustive list.
Edited 1 time(s). Last edit at 12/18/2011 01:35PM by MarkRicher.