Sudden memory loss symptoms and conditions

My mother is 74 and has been on Lipitor 5 mg for about 6 weeks now and has experienced her 1st TGA. She called me today to tell me that someone had come into her house and cooked a platter of bacon and moved a basket around. She couldn't find her purse and went outside and sure enough it was in her car, but the door was standing wide open and the purse was sitting on the seat. She remembers nothing! This evening she swore that our second child was born in a different house. This from a woman who can remember the tiniest minutia. This Lipitor is terrible stuff! She is now officially off of it. R.