Hello avinash6080 Welcome to HCM ICH and also fracture in T12 vertebra are both very serious conditions. In such chronic debilitating conditions and also advancing age the muscles can t contract properly and spasms in back muscles usually occurs which usually cause pain in back in bed ridden patients. Second cause is nutritional deficiencies specially chronic hypocalcemia usually results in brittle vertebra and fractures in other vertebra may be suspected. Best option to avoid such pain is physiotherapy of back muscles by a trained physiotherapist. His lack of interest in daily activity is due to the history of ICH in frontal region. Frontal region pathologies cause apathy, anhedonia, lack of interest and many other personality changes. So warm support and proper care giver support is must to improve his condition. Phenatoin is being given to him to control any possible seizure activity resulting due to frontal lobe region. Thanks Hope I cleared your doubt. good luck