Your trouble appears to be mainly clue to your inadequate bowel action. It is entirely possible to have a movement every clay and yet suffer greatly from constipation and intestinal absorption, this in turn causing gas and pressure and pain about the heart. You should get at least two bowel actions daily, but do not use powerful purgatives in an effort to bring this about. Instead, try oil retaining enemas, etc., but depend principally upon correction of diet. Change your diet to include plenty of fruit both fresh and stewed; plenty of vegetables, greens, etc., and drink plenty of water. Eat sparingly of meat, and cut down on the amount of tea, coffee, etc., you use.