Orange stool cough walking up at night gasping for air and my right foot is swelling?

See Dr. ASAP. Orange stools not worrisome (usually from eating foods with a lot of beta carotene, like carrots, yams, etc.), but coughing, gasping for air and foot swelling could be a sign of a very serious problem. If only one foot is swollen, first worry would be a DVT (blood clot in vein, which can travel to lungs). If swelling in both feet, first worry would be heart failure. Get checked out right away!