Hi & welcome.
It's very possible for your child to have Reactive Attachment Disorder (RAD). This comes down to a lack of trust for her primary caretaker. Her early life before she was able to rejoin you may have been chaotic. She was just beginning the attachment process when you left for the states (not a judgment ~ just stating the facts) & your daughter was left with nannies.
Having said that, there is an entire spectrum of this disorder - from attachment issues to full blown severe reactive attachment disorder. As MWM stated, you daughter is now a young adult ~ does she want help?
