I have chronic constipation. I also have severe back issues. This began in 2008, due to an accident. I used pain meds for a couple of years. I no longer use pain meds because of severe constipation. I asked my Dr. about Relistor and was told it was for terminally ill patients. I have no quality of life because of the pain, nausea, bloating. Would this medication help me? I am using Linzess and I don t think it works well for me. Makes me sicker. Please help.