We’ve all experienced that all-too embarrassing moment when you’re speaking in front of an audience only to have your voice crack. According to Medical Daily, voice cracking is often a symptom of vocal cord strain.
This can be caused by yelling, singing, or illness. Stress or anxiety and the consequent tensing of the larynx can also be the source of the problem.
Dr. Oz claims one of the most common causes of voice- and throat-related problems is acid reflux or heart burn. When stomach acid refluxes past the esophagus and into the throat, it can cause a burning sensation and lead to swelling in the throat.