About halfway through a slightly rushed lunch I started getting some cramps in my upper stomach. Not sharp, just uncomfortable. They've been going on for about 30 minutes now. Across my ribs - about an inch or two below the bottom of my boobs.
Is this acid reflux? I know that's common and could have been brought on my eating - especially as I was drinking a Diet Coke at the time.
Or could it be something more serious?