I relate to your condition and I have a similar cognitive interruption when and where severe anxiety kicks in. For me it includes a change of color and I sweat profusely. There is no hiding it.

I have always just powered through because I have found that once it passes I return fully. For me it is about some magic comfort level. Once I get there and it usually takes a little time(weeks not minutes or hours) this isn't an issue anymore. Interviews are the worst because I don't have that time and they are usually with people you don't know, which is at least part of the trigger.

I didn't want to use any medication to treat it, but I have helped to manage it. For me an exhaustive workout a few hours before the interview helps. The other thing is diet, in my case, if I focus on high-protein and low carb and that also seems to help.

These aren't recommendations, but I relate, and I thought it might be helpful to look at broad approach to managing it on your end.