Yes, for sure - I don't have it 24/7. On a good day, I don't really have anxiety at all, just waking at a ridiculous time and then I'm usually able to doze again.
On a bad day, it does last until lunch time but then wears off...
I actually find that it helps to do a workout. I've no idea why, my feeling is that it kind of resets my heart and cardiovascular system if I tell it 'THIS is when you are supposed to be working hard, not when I'm resting'!! It doesn't stop it happening again but it helps me at the time and for hours afterwards.
It affects my life mainly through lack of sleep from the early waking. I find it hard to get sleepy before about 11pm so I can't compensate by going to bed earlier. And also from not being able to concentrate on anything because of this sense of unease or anxiety which isn't focussed on anything (ie there is no specific thing I am anxious about) - which is really unusual for me.