Unbelievably bad wind post neutering op!! Normal?

[monkeywithacowface]

It's been 24 hours since his OP and he stinks and I mean not of this earth stinks! Is this normal? Is it just an effect of the aneasthetic wearing off (and maybe the scrambled eggs he had for dinner and breakfast!)?

My dog reacted to the anaesthetics and we had diarrhoea after his neutering which took two vet visits to sort out so yes you can get upset stomachs afterwards.