The thyroid gland is a small butterfly-shaped gland in the neck, just in front of the windpipe (trachea). One of its main functions is to produce hormones that help regulate the body's metabolism (the process that turns food into energy). These hormones are called triiodothyronine (T3) and thyroxine (T4). Many of the body's functions slow down when the thyroid doesn't produce enough of these hormones.
Esophageal spasm is a disorder of the rhythmic waves of muscular contractions (peristalsis) of the esophagus. The cause of this disorder is not known. Symptoms include chest pain and difficulty swallowing.
Signs and symptoms of esophageal spasms can include: 1  Squeezing pain in your chest, often intense, which you might mistake for heart pain (angina). 2  Difficulty swallowing (dysphagia). 3  The feeling that an object is stuck in your throat (globus).hen to see a doctor. The squeezing chest pain that esophageal spasms can cause can also be caused by a heart attack or angina. If you experience squeezing chest pain, especially if it is a new symptom, seek medical care right away to make sure it's not a heart problem. 1  Definition.