Top 10 Most Reclusive Celebrities. Bill Watterson. As author of Calvin and Hobbes, the beloved comic strip about a mischievous 6-year-old and his stuffed tiger, Bill Watterson's work appeared in more than 2,400 newspapers worldwide.
If you have anxiety attacks, there is a good chance you're hyperventilating often. And if you have anxiety and you've ruled out other health problems, hyperventilation is very likely to be the cause of your symptoms.
Panic disorder causes panic attacks spontaneous feelings of anxiety, terror, or impending doom. Physical symptoms include heart palpitations, chest pain, and shortness of breath. These attacks may be repeated at any time. People with any type of anxiety disorder may have panic attacks.