The last week i have had pretty severe stomach pain. Started on the left side then added the right side then just above my belly button (the worst pain) my normal doc says anxiety.. I have anxiety but i really am hurting. ER guessed an std.. I know for a fact thats not the case. Now I'm having light brown stools with dark circular spots. Not very many spots. I think the pain may be trapped gas. After i left the er i realized i hadn't passed gas in about a week. Any thoughts would be appreciated!