what are signs and symptoms of the last stage of esophageal cancer?
['worsening cough and sore throat.', 'labored breathing.', 'greater hoarseness and difficulty speaking above a whisper.', 'hiccups.', 'nausea and vomiting.', 'bone and joint pain.', 'bleeding in the esophagus, which can lead to blood in the digestive tract and stool.']