WHEN YOU CAN'T STOP THE HICCUPS
In rare cases, chronic hiccupping may be a symptom of a more serious health problem. Possibilities include infection; renal (kidney) failure; liver disease; cancer, including lung cancer; nervous system or abdominal problems, such as ulcers; and even heart attacks. Virtually anything that affects the head, chest, or abdomen can be implicated. A common bout of hiccups usually lasts no more than an hour, and the hiccups occur at a rhythmic interval of about every 30 seconds. It's time to see a doctor if the hiccups continue with frequency for much more than an hour, keep you awake at night, or don't respond to home remedies. In some cases, a physician will prescribe antacids or a sedative to help calm the digestive system. And in instances of severe, nonstop hiccuping, surgery may be performed to cut the phrenic nerve's link to the diaphragm in order to stop the spasms.
because the worst thing to do when something is wrong is google it.