No he has not. He had this
The vet didn't seem terribly concerned about his gulping of food and gassiness (I realize now that gulping can = farting).
I told him that sometimes he eats so fast and poos so quickly afterwards that I've seen whole kibbles in his poo. He said, 'well he's been completely dewormed (he was given that new one through the skin on the back of his neck one shot deal thing, the name escapes me atm) and if this doesn't stop in a week or so, we may have to try something else (ominous words those) but some cats are just like that.'
Do you think it's fecal sample time? I am going to phone that holistic vet soon that sugarcatmom rec'd, just wanted to give the food a chance to work first.