Hi thanks for the query.
From the complaints you had described she must be bit obese
, and some changes of wear and tear changes in the spine and hip bones. The complaints mostly are seen in elderly and obese personalities. Firstly I would suggest you to motivate her in getting and make her walk. Next provide her with walking aid either an elbow crutch
or an walker and attach a physiotherapist who could make her walk. Consult your local orthopaedic doctor who can advice regarding basic analgesics and calcium supplements