Can DHE cause hair loss and shrieking sounds?

My daughter received DHE IV treatment for three days.  She left the hospital very weak.  Over the next few weeks, her hair began to thin and she began making an uncontrollable shrieking noise.  It has now been one year since the treatment.  She has very slowly regained some of her strength and her hair has grown back but the shrieking noise remains.  She is currently 15 years old and is still suffering with headaches.  I do not believe that her headaches were ever migraines.  No medication or treatment has ever given her any relief.  Could DHE have caused her strange symptoms?