Stomach hurts every morning when i wake up for about an hour and goes away. why is that?

Morning belly pain: The longevity & situational nature of your symptoms argues against a mechanical problem, suggesting such entities as diabetes with gut neuropathy, atypical migraine, lung & sinus drainage nocturnally, & even functional disorders of the gut. ?Have weight loss, stress/depression--the doctor will ask about these & more when he/she clarifies the history here. Evaluation is warranted for treatment.