I am so sorry that you and your daughter have experienced this. I wish I had a magic wand to make it better for the both of you.
Can you speak with the Mental Health facility about care for your daughter? Since she is still a minor, I do not believe they can withhold information from you until she turns 18. Mental illness is a difficult chronic illness, but with meds and counseling it is perfectly controllable.
Many of her symptons are also symptons of drug abuse. Time will tell what is really happening with her. Many times teens with mental health issues self-medicate with drugs. It controls the fear. We are here for you.
Leslie