These symptoms are not consistent with liver problems. They are very common to those found in food intolerance. If you consistently eat the same things each day then consider changing you diet. It is a complicated Science but there are a couple of good books on the subject. Wheat, dairy, soy, yeast and Sugar are the primary culprits but anything you eat on a regular basis can cause these symptoms or react with other foods. It could take several month to see an improvement after stop eating the troublesome foods.