Can chostocondrotis keep reoccuring in an individual with a gap of few months to a year or so?

Not so unusual: Yes. It's not unusual. It will often improve with one or more modalities: NSAIDS, local injections of anesthetics, physical therapy, TENS, acupuncture, stretching exercises, heating pad. Emotional stress may play role in this regional pain syndrome. Repetitive strain of the chest wall may play a role in some patients. See>> http://bit.ly/1ElGjHc