my husband --age 66--has some mental confusion, tremors in his hands,sweating episodes, dizziness, shuffling gait. he has been diagnosed with A-Fib,COPD, sleep Apnea several years ago. Drshave checked his eyes,ears,lungs , and heart. he has had scans on his carotiod arteries, and skeletal scans and they are all in acceptable levels. is there anything else?