'chemo brain' is a common side effect that goes away with time, most of us are finally able to laugh about it.
"destroyed her insides' is a little strong, I'd say ..though some of the side effects can be harsh.
You didn't say what kind of chemo she had nor why they kept her inthe hopsital so long.
You might want to take a look at some of the more active message boards.
Hope she continues to improve and the the chemo buys her another 11 years.
djc