I have a lifelong tic that causes me to clench my diaphragm hundreds of times a day. That causes GERD and reflux which, in turn, causes a disorder called Barrette's Esophagus (BE). In BE, the skeletal muscle tissue located in the upper portion of your esophagus (the tissue that allows you to swallow at will) is being replaced over time with the involuntary tissue similar to that found in the intestines. The older I get, the more frequently I aspirate and, according to my gastroenterologist, I'll eventually be unable to swallow at all. But a college prof I had once actually thought I was lucky I didn't "have that swearing thing." smh.