Memory loss issues. My mom has been experiencing a progressive decline in her short term memory function. She is 78 years old and a heavy smoker. She has recently been prescribed Aricept-5mg in addition to the medications that she is already taking for high cholesterol and blood pressure. Since Aricept, her behavior has been quite erratic, she is more confused and making things up that didn't even happen. I am so worried. She has had brain scans, blood tests, and all seem to come back suggesting that she just has age related brain shrinkage, but no one has said that this could be the beginning, middle or late stages of anything. What additional tests can I request a doctor run to take a closer look. Something is definitely not right with her.