I have had 3 bouts of this now, over the course of the last month or so. I get pain in my chest, back, shoulder, neck and up into my jaw and ear. It lasts anything from an hour to 3 hours, giving me spasms of pain. It is really quite unpleasantly painful. I was half convinced it was a heart attack the first time, however there are no other heart attack like symptoms! I do plan to get checked out at the GPs but until then I just thought I'd ask whether people think it sounds like indigestion/reflux?