i have chronic back pain still after 2 discetomys and total lower spine fusion

spine fusion being the last it will be one year in may.i had a total of a week in p/t inthe last year . i woke up paralized/ my legs but started walking very soon after. i believe about a week to 10 days.i do alot of walking in the house during the day and night .i was told that my liver fuctins are going up from a new pill i started i take 40 mg every 12 hours it is opana er. i also take oxy ir 5 mg 4 times a day.im also on nuerotin 300 mg 1x 3 a day. valium 5 mg 1x2 a day. im on i think about 7 other meds,i think these cover the back pain meds though.also have lichen planis and was treated with steroids for several months liver functions were fine befor that,except a couple years ago was taken off vicodine 7/750 up to 6 a day.i need something that wont elevated liver levels. please i hope you can give me an answer i had thyroid cancer and had complete thyroidectomy.so far so good in remission.i am going to go to p/t today i dont know what they will do with me i am still wheelchair i cant be up more than id say 3 to 5 days without my body and or legs look like there spasing.this is while using walker.im just wanting a life again i havent had that in 2 years please help if you can thankyou so much for your time i am female clolse to 46 and was a waitress carrying heavy trays for last 13 years.hope this imfo can help us both