Yes, I don't know about "Blessing" either, but the confirmation of diagnosis, (which I had pretty much been expecting/dreading) did flick a switch in my brain from "hope it will all go away by itself or some other miracle will happen" to "right, don't eat that, this one is okay, no, don't have those, cut that out totally, small sips of that very, very occasionally, more of this..." kind of thinking.
But it was completely like a switch had flipped over in my brain, a sudden and complete reversal of thinking, and I'm thinking that it might have happened just in time. I hope so anyway.