Why is throwing up so uncomfortable?

What disease is a chronic autoimmune disorder that is most often found in the ileum and in the colon? The process of artificially filtering waste products from the patients blood is known as? Accelerated junctional arrhythmia with a complete AV block? Could the physical and psychological needs for food ever be in conflict? What is the difference between narcissistic personality disorder and self-centeredness? Can you become a human avian hybrid? What causes scalded skin syndrome? Why do you need to wipe off the first blood drop? How do you get rid of mucus in your head after a flu? Which organ system contains aorta? Do viruses have Golgi apparatus? How can you reduce scar tissue and swelling years after an accident? Does cynanide poisoning cause a metalic taste in mouth? What causes forearm cramps that make my fingers draw up? What common gastrointestinal disorder is known as GERD? What time of day does the story The Tell-Tale Heart take place? What is the failure of the the les muscle to relax? What is early intervention for babies? Is elderberry good for people's eyes? What is indigestion and what usually causes it?