The past week every morning i wake up with a stomach ache and have mushy stool. for about an hour or two then i'm fine, until the next morning. why?

Check dietary issues: This sounds like a new symptom for you. Think about any change in your dietary habits recently.. are you ingesting sugar-free sucking candies which contain sorbitol. Otherwise, if the symptoms persist ,have stools checked for any infection and see your physician for further workup as indicated to rule out any sort of inflammatory bowel disease. It may just be a simple virus.