Vela,
Originally, on Sunday, the 22nd, he was acting 'drunk', and seemed to be showing symptoms of an obstruction, intense abdominal pain (which I now remember we did not tell the doctor about yesterday), and upon xray, there was a grayish 'mass' on xray...so, induced vomiting, gave an enama, did a barium thing, and maybe that was when the xray showed a mass? ARGH. Anyhow, the surgery was the next day after the perioxide/enema, and the specialty vet said it is *possible* that his stomach could look like that after a night of vomiting.