My Husband Has Very Bad Thigh Pain, Leg Pain, And

My husband has very bad thigh pain, leg pain, and weak legs, hurts all the time cant sleep have had 2 back surgeries 4 disk remove from back 2 shoulder surgeries 11 eye surgeries and a dibatate high blood pressure and momery is slow,he is 67yrs. old get mad real quick just do not understand he is getting worse