Is the pain postural?.. (lying down --> pain worse?).. I had same problem and had a therapist work on my middle back pain.. esp between T4 to T7 I think my back pain was causing the spincter in my stomach to stay open causing the hernia.. once I had my back fixed and then I improved my digestion with bitters before meals it helped me and I no longer suffer.. try everything else b4 opting for operation i think.. good luck!!