Anxiety and the fact that "everyone has it"

I think physicians should conjuncture a new term or two that separates the anxiety that I get and the anxiety that (most of) my classmates receive.
When someone says, "oh wow I am so anxious" and I see them sitting still and able to calmly talk about something else, I consistently will doubt the seriousness of their claims.
Anxiety for me includes (but isn't limited to) violent shaking, everywhere, and all of the time, eyes darting, heart screaming, furious sweating, oh and this is all while taking a test in English.
There is a fine line between my above described symptoms and someone who is nervous for a test next period.
Anxiety can often be similar to your [females] menstrual period. Ghastly comparison I know, but just when you think you're in the clear for a while, your anxiety comes screaming back, full fledged or potentially worse than before.
My anxiety is me drowning in a pool, struggling to get air, so close, but not close enough, with everyone else around me swimming and diving down right next to me. The ironic thing is when he/she dives down next to me, I can't quite grab onto them on the way up, but he/she comes up for air with ease, and I am stuck wondering how to get above the water, even just for a quick breath.
Anxiety and anxiety are not the same and I wish people would recognize this.