Symptoms of celiac disease can vary from mild to severe. Some people have no symptoms, although they still are developing intestinal damage. Celiac disease is sometimes misdiagnosed as irritable bowel syndrome, Crohn's Disease, or gastric ulcers. Digestive symptoms may include: 1  Abdominal bloating and pain. 2  Diarrhea. 3  Vomiting. 4  Constipation. 5  Pale, foul-smelling stool.
For other uses, see IOS (disambiguation). iOS (formerly iPhone OS) is a mobile operating system created and developed by Apple Inc. exclusively for its hardware. It is the operating system that presently powers many of the company's mobile devices, including the iPhone, iPad, and iPod Touch.
The primary competitors to Apple iOS in the mobile operating system space are Windows Phone 7, Googleâs Android OS, and the BlackBerry OS. Apple iOS does have a head start in the apps department, with its App Store already featuring more than 500,000 third-party applications.