Naomi
So sorry to hear of your distress. I can equate with that as I watched both my grandmother & my grandfather die of cancer. At that time there was no MacMillan homes or other places to go, they had to stay at home and there was no pain relief such as we have today.
However, being a person of faith I know I will see them both again free from any pain and suffering.
You say God brought this about, but actually it is not. If, as you say, you have studied the Bible, then you will know that it was Satan who brought pain, suffering and death into the world. God is only waiting until his time when he will bring an end to all pain etc. At the same time, for those who have died he has given us the resurrection hope.