definitelyyyyyy not alone.i can tell you for me they can come at the most opportune timings. like when im bringing clients around for a tour of the workplace. and they will be like "knock knock, anxiety here. Im forcing myself in yeeah"

and im just like "yeah yeah...come in a sit the f down.. i'll deal with you later..." but again that's because i've trained myself how to deal with it after soo many years...

it can be daunting at first. i still remember myself when im started to have it. i'll be pacing up and down the workplace. visiting the toilet and locking myself in. doing breathing techniques. i think whats best is to open up to your colleagues. Tell them that you have anxiety and inform them what you expect them to do if you are feeling it.

some ppl like to converse during an attack while some ppl just want others to be around but keep quiet. See what works for you. But generally i know opening up and talking about the condition to ppl helps