Lactose Intolorance

Has anyone become lactose intolorant since having WLS? I don't think I have as I'm having milk in my protein drink which I'm fine after, but now I can not eat breakfast cereal without dumping afterwards. It's only the last couple of weeks this has started happening and it is with all kinds of cereal - not sugary ones!

Not lactose intolorant - but - I don't crave milk like I used to. I hardly ever drink it anymore where it used to be a daily common drink for me.