I’m writing this during a panic attack.
It isn’t exactly low grade, but I am functional during it. Normally I can’t breathe and I curl up in my bed and shake violently.
But right now I can focus and I can write.
To describe what I am feeling, I would say that my chest is tight, I am breathing heavy liked I just got done squatting a very heavy set. But my breathing often switches to short quick breaths that are similar to hyper-ventilating, but not quite to that level.