I am a 16 year old female. I woke up one morning with a sharp stomachache and thought that it was because I was cold from the night. The stomachache went away and came back with sharp periodic pains. It lasts for a couple seconds each but the pain makes it feel longer. It feels like someone is taking my insides and twisting them right under the sternum. I have had sometimes a loss of appetite and indigestion. It hurts when I move sometimes and hurts even more when I am with an empty stomach. Someone help me?