Hello Lightning05,
I am so sorry to hear this

.

I have PTSD as well and know too well about triggers and being horribly effected by them. I have had times where i would legit just freeze up completely and people could even see the fear on my face (as people rudely pointed out i looked scared) and then i just get out of there and try to be somewhere i can be alone. It is a nightmare to live with. I really hope your therapist will be a very good one that can help teach you the coping skills to get through it. I think the thing about triggers and having PTSD, is learning how to manage it in a healthy way. Since it may not completely vanish, learning to cope with it in a healthy way is cruicial.
I wish i had more advice and tips to tell you on how to deal with it, but i also dont deal with it well and wish i could. But i wanted to let you know that you are not alone!!! I wish i could say i found a good therapist that helped me to cope but i have not yet but i still have hope..... maybe also try looking into medication to help with the feelings of being triggered. I wish i had more advice but i havent found a lot of things that helped me except to run away or get away from whatever is triggering me and/or to just be alone to myself as i dont like being around others when feeling triggered and then just experience all the negative feelings until it passes.
I hope you will be able to feel better, rooting for you!

Stay safe