While mania and hypomania have many similar symptoms, like having high energy, rapid thinking. and such. What makes it mania, instead of hypomania. are these differentiating characters:

  1. lasts at least a week
  2. severely impaired from normal functioning, feeling debilitated
Medicinenet states it this way, from https://www.medicinenet.com/mania_vs_hypomania/article.htm#mania_vs_hypomania_facts

What is mania and what is hypomania?

  • Mania is a severe episode of elevated/euphoric or irritable mood and increased energy that usually lasts at least a week and severely interferes with the sufferer’s ability to function.
  • Hypomania is a less severe version of mania, in that it is characterized by somewhat elevated or irritable mood that may more mildly interfere with a person’s functioning to a less debilitating degree than mania.