I have a pain in my left stomach area. what could it be?

Have u been checked?: "stomach pain" can be caused by lots of things ; may indeed originate outside the GI tract. Further evaluation is in order before anyone can answer "what to do." your doctor will want to re-examine you as well as know the quality, timing, duration, exact location, ; associations (eating, position, activity, stooling, urinating) of your pain to better direct the next appropriate testing.