You are concerned, and you are a person in developed part of the world, so looks like it's not that bad eh? As long as you don't recuse yourself from the problem, of course

> If this particular thing concerns you and you are not non-stop stressed that only means that you haven't understood it yet.

That's a mentally unhealthy attitude. Whether something is of importance to you or not should not determine whether you are stressed over it, you can approach it on a balanced constructive way.