In psychological terms that is actually what we refer to as the "Dorcelessness Syndrome". I have studied psychology for multiple years now (Fun fact: I actually did my doctorate on this condition) and it is actually a really fascinating condition that, so far, I personally have only seen once in the field (Though a good handful of documented cases exist).
What was not mentioned in this post, is that this condition is not inherently "contagious" but should still be treated ASAP, as it will otherwise lead to other damaging conditions, the longer it stays untreated. If you find or know somebody, that is feeling dorceless or even just appears to be dorceless, get them to professionals immediately.
Prolonged dorcelessness leads to a loss of identity at best and interplanetary genocide at worst (so far), in all according documented cases.