I am new here, in fact I came here to try and learn some information. I think this is the right place to post so if not, I apologize.My sister-in-law had a minor stroke about a month ago. The only symptom was the inability to use her left hand. She had feeling and all but just couldn't use it, it would just hang there. During imaging, they found an aneurysm and last week, she had surgery to repair it. I don't know the technicalities of how they did the repair, other than she has an incision almost all the way across her hairline around her head.Since the surgery, she has medically done fine. In other words, all of that appears to be healing well. However, she has been showing what I would call severe signs of dementia since. Telling nurses she has asthma, telling everyone her brother and niece are down the hall, believing she has family members stopping by in the middle of the night, and many many other things. She was moved to a rehab facility yesterday and was determined my brother was spending the night. My brother left today to go get stuff she needed and she called me 4 times in 2 hours, telling me about the family members that have stopped by (they haven't) along with other things that she has imagined. This has been almost nonstop. The doctors keep telling us she is improving greatly, and she may be physically, but the mental thing is wearing everyone out. They say it should improve with time, but can offer no timeline or if being this bad for this long is normal. She is 71 but acts like my crazy grandma (sorry, honestly can't think of a better word for her and she didn't like me much anyway) when she went off the rails in her late 80s.At our wit's end trying to find out if this is normal, or if her now will just be her new normal. She is driving my brother (who has health problems of his own) crazy and stressing him out to the point I worry about him crashing. There may be no answer to this but I had to at least find a place to type it out and ask.