Hi I've just joined and desperate for advice please. I'm sure I have IBS but everywhere I look the symptoms are abdominal pain and alternating bowel movements. I don't have either of these but have terrible nausea which seems to come out of the blue and is followed by pencil thin stools. Last Sunday I had the worst abdominal gas ever. The noise it made going round and round was so loud. Hour after hour.Then I passed "clear liquid" from my back passage which has scared me. What is this??The nausea is really really bad - lasts for hours and hours. I've had 6 children so I do know what nausea is like but this is far far worse than that. Then when I go to the loo the stools are always thin, small, or pencil shaped. When things go back to normal my stools are normal. I've had a colonoscopy and upper endoscopy but nothing untoward was found. Is there ANYONE on here that can identify with this? Everyone I know says they get pain but I don't. the nausea is so bad I can't take it much more. Please reply to me if you can help. Thank you, kind regards, Sarah.