Large yellolemons are all I can find around here this time of year and they have always worked fine. Some of that watery green stuff could have been bile from your liver. Try drinking plenty of Liver Cleansing juices, apple, carrot, lemon, grapefruit and orange, do a couple of coffee enemas a week, and try the flush again in 2-3 weeks. You may not have stones in your gall bladder, but have some deeper in your liver that need to work their way out.