We all have problems. Or rather, everyone has at least one thing that they regard as a problem.
You won't stress over it unless you care.
You are not walking slow enough, when taking a walk, if you do not come across as bored or depressed (to the average sane person).
Rid yourself of those High School grudges which are still stressing you
When you have a Job, it means someone has placed a limitation of TIME on you. Meaning every aspect of your life is controlled. It becomes stressing when you are at the bottom of the Career Ladder.