Hi I am 6 days post FUT surgery and I was given painkillers by the clinic which I have had but I have been taking my own co codamol 30/500 which helps with my severe back pain I suffer from. My head does not hurt only by back which was a pre existing issue. Many clinics offer co codamol but in this stronger dose of which I have 2pills twice a day so 4 pills in total .. will it be negative to my results ??