What causes me the slight pain in my stomach every morning?

I have had my gall bladder removed laproscopically, about 6 months ago, after detecting gall stones. I do not have those excruciating pains ociated with gall stones anymore. However, every morning I get up with a slight pain in my abdomen that goes after I have had some water and / or munched on a few biscuits. The pain is not very severe but causes me enough discomfort. This happens every morning irrespective of what ever I might have had the previous night. Any ideas on what could be causing this and how could I get rid of it / avoid it?