I had been having acid reflux for a few weeks, and last week I woke up after rolling over on my stomach during the night with acid burning my esophagus. A doctor perscribed me Nexium, but since my insurance wouldn't cover it, I started taking over the counter Omeprazole instead. The very next day I woke up with stomach pain and cramps at around the same time I had the acid reflux the previous night. I haven't really had that again since then, but I've been having gas, bloating, and chest pain. I had similar symptoms previously when taking Omeprazole. At the time I was also taking Ibuprofen and the symptoms had started before I started taking either (caused by some food-born illness I think), though the symptoms continued for months so I don't really know if the Ibuprofen or Omeprazole could have contributed to them. I was wondering if the Omeprazole could be causing my current symptoms. Can it cause other symptoms of indigestion despite reducing acid? Or are my current symptoms probably in spite of the Omeprazole rather than because of it?