This article from AFR BOSS discusses the work anxiety syndrome: where people are physically sick as a result of stress, job insecurity, lack of control or frustration at work.
The syndrome exhibits itself in nausea, neck and back pain and becoming short tempered amongst other things.
A key quote:
"These days, worrying about our daily tasks makes many of us get them done properly and efficiently and ensures we don’t forget them. Most high-performing people often suffer from anxiety, but too much worry is detrimental, regardless of the personality.
According to an article on overcoming work anxiety by US psychologist Dr John Weaver, there are three signs of disproportionate anxiety: if the fear is out of perspective or irrational; if it results in paralysis rather than action; and if it is pervasive.
Fear that is out of proportion disrupts our ability to make logical decisions, he says, and makes us overestimate risks. When our dread rises to very high levels, the goal becomes avoidance and we can freeze during an important presentation or meeting."
The Resilience Institute recommends starting the attack on such problems with a good sleep strategy.
Elsewhere in the same issue of AFR BOSS (but not online yet) Amanda Sinclair talks about self-doubt when a person starts a new position.