One of hardest forms of stresses to avoid is that  work place or job stress
Job stress refers to stress experienced by an individual at or because of issues at their work place
The term work related stress has many meanings and it causes different levels of anxiety.
Not all challenges at work can be called stress as some of these challenges drive employees upward, and empower them to learn new skills or push them to work harder to achieve a certain goal.

So, this type of challenges cannot be considered as true stress

True job stress is a condition that not only destroys employee desire to work, but also his or her energy, getting them to suffer both emotionally and physically.
Warning signs of stress at work when people feel overwhelmed they feel lacking confidence, become irritated or withdrawn, less productive, less effective and their work less rewarding if these warning passed unnoticed then signs and symptoms of stress will appear.