Emotional Storm: What to Do When It Overwhelms You. Calm Down. Right Now

Each of us has far more peculiarities than it seems at first glance. Some people count the steps on the stairs, return home several times to check the iron or stove in the kitchen, irrationally hate those around them, worry about every little thing, or fall into apathy. And there are those who periodically catch a wave of excessive emotional "high" or hear "voices" that give them commands. Where is the line between normality and pathology? How can one determine if I am a "normal" person or if something is wrong with me?
Let's figure out why this happens and what to do about it.