What are 5 systems (or signs) that an individual has "social anxiety"

1)  Intense anxiety in social situations
2)  Avoidance of social situations
3)  Physical symptoms of anxiety, including confusion, pounding heart,sweating, shaking, blushing, muscle tension, upset stomach, anddiarrhea
 4)  Children with this disorder may express their anxiety by crying, clinging to a parent, or throwing a tantrum.

Blood transfusions were rarely done and often fatal; they were outlawed until the nineteenth century.