How Can Gastroenteritis And Chronic Diarrhea Be Treated?

4 months ago I had a laparoscopic hiatus hernia repair and partial fundoplasty, I have recovered well apart from my digestive problems. I started having looser stools, then 4weeks ago I got gastroenteritis on holiday and had chronic diahorrea for 8/9 days in spite of 3 courses of loperamide. It eventually settled but now 2 weeks later I ve got diahorrea every morning, bloating,gurgling, gas and my bowel movements are completely liquid and sometimes uncontrollable. My Consultant said I would have looser stools for a time as the vagus nerve was stretched, but this would settle with time. At first it was manageable , but since the gastroenteritis it is much worse and I am worried this will never clear up and become a permanent problem. I would welcome your opinion.