My mum, dad, sister, most of my friends and a few of my teachers know about it (also I told my GP about it at an appointment). I'm not afraid of telling people who I trust (who I know won't jokingly try to invoke my phobic reactions), and most of the time (but not all of the time) my parents are understanding and caring of my phobia, but I do sense that often they get bored or annoyed at my pestering or crying from my anxiety.