Hi there ~
I understand your concern. However I do not see a question in your whole story. I will try to let you know what I know about addition to pain killers. It is not the best thing to have for an addiction and in the end you probably are going to end up damaging your kidneys, similar to your brother who has ended up damaging his lungs. I understand that you are still in a position where you can go off of medications. I recommend that you see a psychiatrist
specializing in substance abuse
disorders and get help. I hope you do so as soon as possible.
Take care and have a lovely day!