What happens next?

How to handle people who do not understand your anxious child
Tell teachers and other authority figures about your child's anxiety.
Make sure that adults who interact with your child on a regular basis understand that they have anxious tendencies. Let them know which situations your child is afraid of, and tell them which coping strategies your child uses to calm down.
Authority figures like teachers can also update you on how your child manages their anxiety when you're not around, so check in with them regularly. Anxiety can manifest in a number of ways with children.