My dad got ill a month back & still having weakness in his body. He's around 60+ age. He's unable to do any work, feels dizzy & tired all the time. Feels like there's no strength left in his body to do normal day to day work. He don't feel like eating anything. He's diabetic & under medication for the same. He has recently gone through some tests & his test seems normal, just got some urine infection. Please suggest what we can do.