Tonight she was standing behind my couch talking to me. She all of a sudden got real quite and kept looking down at the couch and didn't really seem to know where she was. She started saying really strange things and her words were all jumbled. She seemed very weak and couldn't walk very well or sit. I have never seen her like this. Could she have had a stroke or is this part of the Alz. I didn't see any drooping in her face or anything like that.