She was so scared when she first moved to New Zealand that she struggled to leave the house and would spend days working up the courage to walk to the supermarket for basic supplies.
By feeling worked up, you will send your body into fight or flight mode, and with too much adrenaline and cortisone flying to your brain, you will wind up feeling short of breath, tight-chested and sick.
And in answering that question, in working our way up to Kant's answer to that question it will help to bear in mind three contrasts, or dualisms, that Kant sets out.
On the other hand, if you see deadlines as more of a suggestion than a hard-and-fast rule, and you are constantly changing your work up until the very last second, you're a perceiver.