Gastroparesis or delayed gastric emptying, is a condition in which the muscles in your stomach don’t function normally or work at all. This prevents your stomach from emptying properly. Gastroparesis can interfere with digestion, cause nausea and vomiting, and cause problems with blood sugar levels and nutrition.
Symptoms include vomiting, nausea, a feeling of fullness after eating just a few bites, abdominal bloating, heartburn or gastroesophageal reflux, changes in blood sugar levels, lack of appetite, weight loss and malnutrition. It’s not always clear what leads to gastroparesis. But in many cases, gastroparesis is believed to be caused by damage to a nerve that controls the stomach muscles(vagus nerve).
Gastroparesis, Mayo Clinic (Mar. 8, 2018), https://www.mayoclinic.org/diseases-conditions/gastroparesis/symptoms-causes/syc-20355787