Hiccup with intense pain in right shoulder after? history of heart disease

Needs to checked out: In addition to your heart I might want to assure your liver and lungs were fine. Irritation of the diaphragm can cause hiccups and be associated with referred pain to the shoulder. I had a patient once with an amoebic liver abscess that presented with shoulder pain. Time to see your doctor! Especially given the intensity of pain reported.