My mom is 82 years old. When she is inside her apartment she walks without a walker but when she goes out she relies on a walker. She developed a fear of walking and wont go outside of her apartment building. And every time she has to get out to see a doctor she gets terribly anxious. It appears that the anxiety meds don t help so maybe she has ear/vestibular problem? What Rx meds or over the counter supplements can she take?