I MISS ONIONS!!
Sometimes people have unusual reactions to food after the DS but most of us don't have issues like this. A lot of times you may have some issues while you are healing but they get better after that.
I was lactose intolerant post-op (just with regular milk and powdered milk) for the first year but that seems to have gone away. Other than that, at 2+ years, I can eat pretty much anything.