Thought I ate bad food last night. Tummy grumbling and pain covered an area perhaps the size of a golf ball. That's not to indicate that I felt anything hard. I did not. Pain is centered on my left side (and more left than center) at a point 4-6 " below the lowest left ribs. Took 4 hours to fall asleep. Pepto and Tums and Ginger Ale caused the pain to subside after 3 hours. Tonight I fell asleep without any problem but I awoke after 2 hours with similar pains. I know kidney stones which are painful from the back. This is different and appears to be in my digetive system. I still want to blame food (this time Mexican). More likely the pain is in the frontal arearather than in the back area. I am a 72 year old male with regularly scheduled medical exams.