Reality in God, With Skin On

We are all going to die. Matter of fact we are dying right now, each one us, just at different a rate. And for some reason death has being hanging my life for a few weeks. Not family but close friends. I guess that is the reality of getting old.
Over the past few months, I have developed unexplainable shaken in my hands. My heart has an extra beat that it shouldn’t have, my eyesight is getting worse and I don’t have much of an appetite and I am allergic to some very common drugs. Getting old sucks, but it beats the alternative..dying young.
I question God about His seemingly lack of compassion and caring. How can a God that loves us allow the bad things in our life? Why does cancer take the life of a good person while the wicked go unpunished?
The thing is I believe God can heal, can change the course of our suffering and supply our needs. But why doesn’t He? Why was Hitler allowed to kill the Jews? What purpose could that possibly serve? Here in the real world, life happens, it happens fast and it isn’t always pleasant.