Karen, a 38 year-old estate agent, had intermittent palpitations for a number of years. Though sometimes she could feel the fast and irregular heartbeat herself, no obvious heart problems had been caught by the Electrocardiograph examination. The palpitations often came when she felt tired and stressed, and was accompanied with short breath, hot flushes and lethargy. She had a lot of night sweats which could be so bad that she had to change her pajamas and bed sheets. The left side of her bac...


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