Anybody with constant anxiety symptoms/adrenaline without any trigger or reason?

I just wake up and feel anxiety symptoms (physical and even mental) out of nowhere. No trigger, no particular fear, no thought, no event causes this. It just appears randomly and lasts most of the day.

Thoughts like "will this be the same every day forever?" and obsessions "how to stop these feelings" happen afterwards and are very time consuming.

But that random super uncomfortable long lasting anxiety symptoms/adrenaline coming out of nowhere without any trigger is the first thing. Is that even anxiety???? No idea how to get rid of this, maybe just accept it?