C.G.
You said doctors...maybe she is being double medicated. Is she using only 1 pharmacy. If it is a good one, I would call them up and ask if you could set up an appointment for a drug utilization review. Take all of her medications and have them go over what they are for. They will be able to tell you if she is taking more than one drug to treat the same symptom or if any of the drugs can cause side effects that she is experiencing. She could also be experiencing the beginning stages of Alzheimer (dementia being one of the first stages).