I have mostly pain in my lower left side. It feels like feces or air is stuck in there and I can't completly relief it with passing gas or having a bm. Often bm's is irritating it even more. I am sitting sometimes 30min.+ on the toilett but never get complete relief. On some days it's just a minor ache but mostly it's very annoying pain. I guess that where the sigmoid colon is located. I often worry about this pain too esspecially when it's very bad. Is this really very typical for IBS ? What could help against the pain ?