I’m so sorry you’re experiencing this. I hope it passes quickly. Loss of interest or pleasure in activities is one of the core symptoms of a depressive episode. It’s one of the symptoms generally used in diagnosis.

You don’t have to be suicidal to be having a depressive episode.
Antidepressants may be of benefit, they are definitely not just used for suicidal ideation.

Are you on any antidepressants?