Navi's boss gives her some disturbing news, but a phone call from her husband distracts her. after she gets off the phone, navi has a lingering feeling that something is not quite right but she cannot pinpoint it. most likely, she is reacting to the continued effect of:

Most likely, she is reacting to the continued effect of the hormones. As she receives the disturbing news from her boss, then there is a surge of production of a certain hormone in her body. The effect of the surge of hormones in her body would not stop immediately after the call, it would have a lingering effect.

1.  go out into nature and commune with the divine2.  experience real solitude to truly perceive nature3.  realize that individuals are meant to learn from nature and transcend it4.  think of nature as a symbol of the divine