don't ever accuse yourself of over-reacting. This is your reality and what it does to you so it is very much a problem for you. Have you ever tried some mindfullness techniques. I have to speak outloud to myself and say the realities of the situation and try to handle my feelings that way. Doesn't always work but sometimes just laying out the situation and sorting it through takes away that heavy hold that others may have on you at the time.

I'm so sorry you are working in a place that this happens to you. You have found your own little ways of coping (removing yourself to a quiet space of your car) where you do try and get it together and then you are back in it again.

I hope that one day, these scenarios get smaller for you and you can be free from Panic. I have it too. It takes alot of work and is quite exhausting personally and I hate it--but I have no choice. I have got to figure out how to live in this world.

I wish you peace and blessings.,