Welcome to the site.
Well it seems like you had suffered a panic attack
which is also called as anxiety
attack owing to the perpetuating stress that you struggle with and the chest pain
was a part of the panic attack. Xanax was justifiably used for that purpose and it does not interact hazardously with either lexapro or trazodone
, in fact this combination is quite often used so there is no need to worry.
I hope this helps.
Wish you all the best.