MsDiz is right chrisp. You have made at least 6 ( that I know of ) threads about the same topic.
Nobody here on BL knows your physical condition. We have no idea what may harm you and what may not. You seem to be overly worried that you are ruining your organs. Any chemical ( and painkillers are a chemical ) will harm you if you take it long enough. You said you were going to talk to your Dr. so if you haven't then you should. An M.D. is the only one that can give you answers about your own health and what you should do to protect it.
I understand that you are addicted and can't stop taking it so the only way to protect your organs (and your sanity) is to take as little as possible and give yourself breaks. Since we aren't medical people here ,we are just users like you, that's about all anyone can tell you. There is no way we can diagnose how long you can take pills before you start damaging any of your organs. Just be safe and if you are young and healthy you probably are fine. Talk to your Dr. to get a qualified answer or WebMD also will have information.