My husband has been having stomach pain - cramping. He is hungry, but can t eat his normal. He feels better after he eats but the cramps don t go away 100%. He can have a normal day and work, sleep, there are no bathroom issues. I believe he has a stomach ulcer, he drinks power aids, but recently changed to an all-Natural Apple Juice instead. This is the only thing that he has changed recently. No fever, but feels like the onset of a flu. We recently moved to Denver, so I would say he is also having issues with altitude illness but has not been medically diagnosed with it.