MY mother is 73yrs old and has now started forgetting things.She sometimes cannot remember our names.She forgets where she keeps her spectacles,reading books,etc.On waking from sleep her orientation is also sometimes altered.SHE Is on nortyptiline 1. at present and lonazep0.5 mg.She had been started on Donepazil but she felt very unwell with it so she discontinued it.Her main complaints are feeling her hearbeat in her ears and feeling of tingling in her legs.Her MRI brain and other tests are normal .SHE is on low dose statins.also.PLEASE ADVISE.