My response does answer the question
God made humans and gave them free will
I would accept that the only logical answer is based in free will, but that isn't the answer you gave. And free will doesn't account for all suffering.
Epidermolysis bullosa is a rare inherited disease . It can be inherited from one parent or both. There is no cure. The only way to prevent it is for those who carry the gene not to have children. That means genetic testing and raises ethical issues about 'designer babies'.
The trouble is that it's not always inherited, so realistically there is no way you can guarantee preventing it. And what about those who were born with it at a time when no-one knew about a genetic connection so couldn't possibly have prevented it? And what about all the other spontaneously generated conditions that cause immense suffering?
Cell replication allows our bodies to grow and develop, yet can result in cancer when natural processes misfire
Indeed. Whilst you can say that human conduct is a major factor in many forms of cancer, it isn't in all of them. So how is that attributable to being given free will?
Genesis, the first book of the Bible, tells of God’s original creation: a perfect world, free of suffering, in which people had a direct relationship with God. God made a good world, but He allowed people to make choices, and the choices they made ultimately ruined it
If you accept Genesis as true, you accept the existence of a very cruel God. Is it really OK to inflict suffering on millions because two people with no prior experience of evil failed an arbitrary test set for them? How does is a god who is prepared to do that compatible with the notion of a perfect god whose existence makes all suffering OK?
Don't get me wrong, I'm not saying we are entitled to a world where there is no suffering; I accept it happens for all sorts of reasons. What I don't accept is the existence a supposedly perfect, beneficent, omnipotent God who chooses to do nothing to prevent random suffering that has nothing to do with the actions of humans or the operation of human free will.