I am 40 years old and have been experiencng severe swelling of my stomach recently, to the extent I look pregnant, together with abdominal pain and back ache. I have put on half a stone in the last 2 months and cannot zip up my jeans (size 8) . I am extremely tired and could lie down at any point of the day and struggle to get up in the morning. I constantly need to urinate and experiencing diahorrea, often several times a day. Although I know I need to eat, when I do I feel full after a small amount and feel nauseas. I have been backwards and forwards to the doctors over the years and each time have been diagnosed with IBS. I had two cysts removed from my ovaries 2 years ago, although the one on my right cyst was not picked up by both internal and external ultrasound....all tests were clear. I feel really low at the moment which is just not me. Any advice would be very much appreciated. Thanks.