Hell, I don't even remember the last time my anxiety was this bad in terms of how long it lasts... 
For the past day or so it's been a constant up-and-down rollercoaster of anxiety peaking and subsiding. 
Usually my anxiety is mainly "an emotion" more so than physical symptoms, but this time it's the opposite. 
I get chills down my spine, stomach tied in knots, can barely eat without gagging, and wanting to throw up. 
It feels like it's not going to leave me alone... I know it's not forever, but damn it still feels like it.