I have the same stomach problems, except I have extreme bloating everyday, and I can't loose weight for anything. I have been treated for everthing, and nobody knows what it is. I thought it was because of my case history with anorexia nervosa, but that was almost 2 years ago. I even experience the discharge. maybe we can all figure this out together.
The discharge that you see is more than liekly mucus. If it is clear or yellowish in color it can be a normal sign of any bowel disorder.
It sounds like you could be under much stress, which will aggrevate any tendancies towards digestive problems you could have. The headaches could be a part of it.
If you do have a problem, alcohol and caffine need to be avoided! They are the 2 worst irritants. See your Dr and don't be afraid to be detailed with him. Good luck!
Your problems sound very similar to mine. Read my question dated 1/15/02 Stomach Issues and let me know what you think. I also suffer from terrible migraines and am constantly tired. Do you find that this happens more when you eat a particular food. I do not find it that way. It happens almost no matter what. Have you seen your doctor regarding this? Any tests done? Good Luck and let me know how you are doing.