Bad things happen to good people, you know that. It is the way of the world. A fallen world that was once perfect but is now corrupted by mans sin.
And collectively, look at our sin to see what a mess we have made of things. Wars, drugs, drunkenness and immorality to name just a few.
God is not responsible for those things, they are our responsibility.
sickness and death are symptoms of this fallen world, and our hope should be in god to put it right, and give us the strength to cope with it.