If I would be treating this patient I would have concentrated more on active management including functional training as the problem is chronic. If she is taking strong medications for pain relieve and are useless I would see that how much she rates her pain on VAS because most of the chronic pain patient usually becomes hyperalgesic due to smudging in the brain and that can not be treated just by hands on. I think you should start with some core strengthening exercises in functional position, some fitness exercises because being unfit since last 1 yr I'm sure her fitness level could had become low and fitness plays great part in reducing pain.