What is a MEC? A Modiï¬ed Endo wment Contract, or a MEC, is a special type of life insurance under federal income tax la w. Speciï¬cally, the law prescribes a test that is intended to differentiate bet ween policies that are pu rchased primarily for certain tax advantag es, versus policies that are purchased primarily for death protection.
Other Causes: Stomach growling. Some of the less common causes of Stomach growling may include: 1  HIV infection. 2  Hypothalamic lesion. 3  Addison disease. 4  Acromegaly. 5  Hyperthyroidism. 6  Cushing syndrome. 7  Insulinoma.
In fact, some doctors have suggested that stressful situations trigger the stomach to produce more stomach acid, which causes symptoms that resemble heartburn. Some of the key causes of nervous stomach are: 1  Stomach ulcers and acid reflux disease (GERD) and irritable bowel syndrome (IBS).2  Changes in digestive enzymes. 3  Food allergies and the intolerance of specific foods. 4  Eating foods that spicy, oily, high in fat, as well as fast foods.n fact, some doctors have suggested that stressful situations trigger the stomach to produce more stomach acid, which causes symptoms that resemble heartburn. Some of the key causes of nervous stomach are: 1  Stomach ulcers and acid reflux disease (GERD) and irritable bowel syndrome (IBS).