The pain in my lower left quadrant has returned. My doctor 20 years ago checked it out and told me not to worry- probably gas.no major organs there to worry about. Very little problems with it since then, However, I went overseas a month ago and dragged around a lot of heavy luggage around the airports, etc. Could I have pulled a muscle? Pain is not constant- sometimes it appears in my back-sometimes disappears with bowl movements(which are normal) and/or passing gas...Should I be worried about this?? I m 72- in great health. recent yearly- I feel no lumps nor pain when pressing in area checking it out looking for pain area and/solid matter. Thanks so much..