Tweet,
Have you ever had your liver evaluated? If your liver enzymes are elavated, it would definatly cause fatigue, nasuea, sometimes pain, and some of the GI symptoms. This is a disgusting question but, are your stools really pale in color - almost like a clay/sand color?? If so, that could be another indicator that your liver might be off. Another question, do you ever suffer from uncontrolled itching? Like you want to tear your skin off?? If so, I would run not walk to your docs office and have them draw a Chem 22 to check your ALT/AST/GGTP/Alk Phos/ etc... I have Crohns disease from my trachea to the rectum and it the crohns has done a number on my liver... probably need a new one in the next 8-10 years... so I sorta know what I am talking about!
I hope this is helpful (by the way, all the symptoms that I spoke of up above are all in my inventory) and although the medical literature says that the liver is incapable of producing pain - it's a bunch of hogwash. I will walk into my docs office and point to the exact spot and sure enough my enzymes will be skyhigh (most should be 50 or under and I have hit the 900's before.
Good luck, take care
zarra