My ex-wife suffered from these for years and they eventually diminished. Some of hers were so severe she thought she was having a heart attack. She went improperly diagnosed and then was given Paxil for years. Her's I think were brought on by work.
I've heard in addition to Rx meds a lot of natural relaxation styles can help, yoga, wine, wacky weed and there's lot of nutritional options such as St. John's Wort. Someone else I know had a kid who started to have them and they enrolled him in martial arts and after a few months he stopped having them. He started up a year or two later when he stopped going to his martial arts class but soon after returning they stopped. Now he's a black belt and is a well rounded young man.
Teach a kid to hunt, shoot, trap and fish.
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