I didn't have problems with my memory too much before surgery, but I've found I struggle post op. Names & numbers don't stick. I went back to college to learn photography & I learned I need to do & not just hear things to learn.
Hmmm not sure on this one myself. If it is due to the Cushings, it should fix itself.
Usually the tumors are still there. The tumors either grow back or the surgeon just didn't get it all. That's why you need a good surgeon. After surgery the doctors wait to see if you "crash." That means they want to see your cortisol levels go as close to 0 as possible. How your body handles weaning cold turkey basically. My first surgery, I didn't crash. My second surgery, I got below 0 before they gave me steroids to compensate & wean down manually. For some people, they have tumors on both the pituitary & adrenals. They only realize it after the pit tumors are out.