In 2011, nonresidential building construction provided almost a quarter of the 195,000 jobs for contractors, with average salaries at $45.41 per hour, or $94,450 per year. Building equipment contractors contained 14 percent of the positions at a mean $46.52 per hour, or $96,750 per year.
Burps can also be caused by drinking carbonated beverages, such as beer, soft drinks, energy drinks, and wine in which case the expelled gas is primarily carbon dioxide from the drink itself. Common diabetes drugs metformin and Byetta can cause burping, especially at higher doses. This often resolves in a few weeks.
But one of the more unusual, and less worrisome symptoms of anxiety is excessive belching. Belching can be caused by a variety of gastrointestinal issues, but anxiety is also one of the more forgotten causes. Anxiety - especially severe anxiety - can change the way you breathe and how you digest, both of which can lead to belching and burping.