Media,
I also highly suggest you go see a doctor and get some tests done. Do not self diagnose. It could be more serious than IBS.
My friend has had what you are describing and his issues were due to gall bladder but then I have had other friends with these issues that had problems in the colon or the stomach.
Again, go see the doctor and let them run some tests, and please go see more than one specialist. Once you are aware of the issue then you can use herbal remedies and diet to resolve if the problem is not too serious.
