I am a better person than God!

[The Industrial Atheist]

Whose sin causes the sickness? The sin of the babies/young children or others?

Also if god is really all powerful, he has full control. Not only can he do whatever he wants, but he can predict all futures and get whatever result he wants. If you say there are rules he must follow that limit him, well, he's the one who made those rules. How does he pick when to intervene or not to intervene? From where I'm standing, there's no proof he ever has intervened.

 Everyone's sin, sin in general, the world was curse because of sin and all these things that go wrong with our bodies is because of sin.

To answer the bold by me, God is all powerful but that doesn't mean He is required to use it, especially in the way you think He should. You say God can do whatever He wants as if He has the desire to do all things and you are wrong, God can't lie, cheat, steal or any other sin, He has no desire for sin, He hates sin. Also you speak as if the future has a multitude of possibilities, again you are wrong there is only one future no other will ever exist. God does have a plan that will result in what He knows to be true and that plan is as unchangeable as God is unchangeable. 
 God made no rules to limit himself, God has been, is and always will be who He is. God is absolute and complete as He is and never needed any rules for himself. God is limited by His nature if you can call it that. From God's perspective He isn't limited because He doesn't have any desire or reason to do certain things, He is who He is, someone we can always trust to be the same day after day.

God want intervene when it would go against His absolute will (plan). God may not intervene when something asked isn't against His absolute will. God acts in situations as He sees fit, when it will be a benefit to a person in the long run, then I could be wrong and He does it out of pure compassion, it's He omniscience that will determine those things and I have to accept that as does everyone, believer or not. 

Then you are standing in the wrong spot, Jesus said let those who have ears hear and those who have eyes see. You have to be on the right side of the tracks to view God's work. I'm watching my mother slowly passing on, she had been suffering for sometime and a little over a week ago I asked God to relieve her suffering if He wasn't going to heal her. Two days later that happened, she isn't suffering now and she soon will not be with us. Yes I dread that day because it will hurt tremendously, but I know and cherish the knowledge that she will be with our God.

GC

Punishing people for the immorality of others is seriously messed up. I'm not suggesting god murder or cheat or steal, I'm saying there are all sorts of perfctly moral ways to prevent death and disease. In fact it's hard for me to come up with immoral ones. It just doesn't follow that the little baby's greadx5000 grandfather ate an apple, and now she/he dies of bone cancer. Or even has any difficulty whatsoever. While I wouldn't want this outcome, why doesn't god "punish" everyone equally? We're all descendants of Adam and Eve. If It's because some people had greatx100 grandfathers that were really terrible people, that's even more unjust punishment. I suppose to god terrible could mean worshipping a god that was the only one they were exposed to.

If you are saying there is only one future because god never changes his mind, that's at least consistent with Christian doctrine. But still this is necessarily the future god wants, if he is really all powerful. If it isn't he clearly isn't all powerful. It would be like if I say I can lift any weight I want, but really I'm only lifting 150 pounds at best, and I say it's because I'm mad at the manufacturers of CAP weight plates, when there are countless others that manufacture of barbells/dumbells and weight plates, even if the fact that I'm mad at them mattered at all. 

If god really has no choice, whatever the reason, that's a huge constraint on his power.

I am sorry about your mother. There are few things as hard as watching a loved one suffer this way.