I am a 45 year old male in good health. However, I have experienced pain at my navel and it projects to the lower right side of my abdomin for several days. The navel is tender to the touch. I have had a normal bowel movements. I am a heavy coffee drinker and after drinking it, I often have to go to the bathroom right away. In the past, I have had a discharge from my navel but that is not the case at this time. Also, I have had a colonoscopy that failed to find any problems. Can this be colonitis? Diverticulitis? Any suggestions? Thanks.