I have had blood tests for everything and my doctor has come to no firm conclusion apart from the fact it could be IBS. I have quite bad pain all around my abdomen and its usually accompanied with tightness between my shoulder blades. Its really annoying because it comes on so quickly and can vanish just as fast. I typically don't have any symptons at the weekends which i always think is odd. A hot shower usually relieves me of any pain. I am only 23 and this seems to be taking over my life. Help.