What is Anxiety NOS

When you're not the one with the anxiety (or even just that specific anxiety, I've noticed) it's so easy to slough it off, I guess, and tell someone just to be brave...

And yes, I'd like to go on something, even a SSRI, for mine, but no, I definitely don't need brain fog. I wonder if that could be countered with something for ADD, Ritalin, maybe? I have so much fog as it is. My job just got rather more demanding, and the last thing I need is something that would make my brain worse. Hard enough to break thru the chatter and focus, as it is.