I also have periods of severe anxiety, in fact I'm in the middle of an anxiety attack right now. When I got the official diagnosis of AS, the psychologist also said that she suspected an anxiety disorder, yet didn't include that as a comorbid thing. After a bad experience with a glorified drug dealer with an MD, otherwise known as a psychiatrist, I'm extremely reluctant to get medication for it. That means that the only ways I try to treat the anxiety is with exercise and some relaxation techniques.
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"I do not feel obliged to believe that the same God who has endowed us with sense, reason,
and intellect has intended us to forgo their use."
- Galileo Galilei