She is just very stressed out. She is in a completly new environment that she is not used to! Make sure you are around as much as possible. Even if you are not neccesarily touching/holding her all the time, make sure you talk and whistle to her. She will get used to you soon. As for the new perches, try not to change around her cage, she is to stressed out right now. Where are the perches located in her cage? Tiels like to be at the highest point in their cage, they feel safe and if they are lower down, she may not want to venture down there when she is feeling so uncomfortable.