Original
For me, the worst part of this disease is how it affects my brain. I have trouble concentrating and remembering things. There are times when it feels like a bit of knowledge just falls into a black hole and nothing I can do will retrieve it. Also when I am thinking one thing and suddenly some weird word replaces one of the words I had meant to say. A word that has absolutely nothing to do with what I was trying to say like moon rather than car or something even more bizarre. There are things I can do that don't require a lot of energy, as long as my mind is firing on all cylinders. That is why for me it is the cognitive issues I find the worst.