I am not an MD, however I am a Medical Tecnologist. To me it sounds like you are passing a lot of bile in your stools which can be related to gallblader or liver function problems.
Green in stool- can be a sign of too much sugar in the diet. You might want to try daily intake of metamucil for the loose stools. Parsley is good for bad breath. Also, I just read that smoking can cause or aggravate GERD, so besides the increased risk of cancer, there is another reason you may want to consider quitting smoking.