I wasn't told to stop taking my meds prior to surgery. I wasn't taking as much as you are daily, but close enough to it. I did have the unfortunate problem of the meds not working very well in the hospital post op. Including the morphine pump. Once I got home and rec'd the same meds I was taking before only without the tylenol in them, and a bit more frequent, I didn't have any trouble with them not working. It is odd he wants you to stop all together. I could understand trying to taper down a bit but if you are still in so much pain, how could you not take them in the first place??? I hope you find the answers you need and wish you much success on your surgery.