My Dad Is 81 Tomorrow. He Has A Pacemaker For

My Dad is 81 tomorrow. He has a pacemaker for a year. He was hospitalized in September for a esbl or ebsl? infection. He is very susceptible to these awful infections since the super pubic cath tube went in a year ago. Now he has the rounds of awful indigestion. He is wheelchair bound due to non weight bearing left leg. I'm worried for him. He has slowed immensely since the last hospital stay. Not overweight, not sick in any other way, no diseases or diabetes. Bp is regulated with meds. Help!