My grandmother is 79 years old almost 80 years old and her head has been spinning non stop and she's been very weird acting. We took her to a Local hospital they ran tests, at the end said she had vertigo gave her some medicine to stop the spinning now she says it spins less, but she has been seeing people who aren't there, talking to people that aren't there, and thinking she is somewhere else. Just last night she was crying saying she wanted to go home but she is home. She wouldn't accept that, finally calmed her and she went to sleep around 8:30pm. She got up at 11:30pm and brought a blanket out gave it to her daughter's husband went to her room and locked the door saying there was men trying to get in but their wasn't anyone there. Back history she's had type 2 diabetes blood levels have been normal lately. She had a stroke 2 years ago and left her blind in one eye. Now she has become worse it seems you can talk to her and she will not say anything. Every once in awhile she will reply. Also told my sister that there was a man in her room that wouldn't let leave it. Recently carried her to the hospital, she spent the night. They gave her fluids and kept her overnight she was not as bad there it seemed. They said she had dementia and let her leave. She for some unknown reason thinks it's 2012. They gave her quetiapine to help her sleep. We got home, she seemed okay, then she started talking, then went silent. As night came she took the medication, 30 mintues later she came power walking down the hallway and sit in a rocking chair with her eyes closed. She usually has to use a walker to get around she didn't have to this time she walked with stride in her step which I didn't understand how. She needs a knee replacement surgery. She sit there silently for 10-15 mintues she got up opening our basement door thinking it was a bathroom my sister stopped her and she became angry and we told her we didn't want her to fall she said " I don't care if I do " she went to the bathroom and to bed. We waited checking on her every 15 minutes to see if she okay, she seemed to be asleep. We waited about 30 minutes, checked on her, she was moving something on the floor saying it was glass. Turned out she had pooped on the floor and was picking it up. She's currently asleep as of now. I fear to sleep in case something happens. Is this normal!? I've never heard of it happening to someone this fast and becoming like this this fast not even like she ever really there anymore.