When you want nothing more than to be dead, but you can’t bring yourself to commit suicide, and have to live day after day of misery, I believe that this is torture. Trivial compared to “real” torture, but still torture nonetheless.
Torture is defined for many magnitudes, but only the sufferers of the absolute worst kinds of torture receive any sympathy in this world. As another example, one-time victims of rape are often stigmatized, and the pain they suffer is dismissed as marginal. But if the victim was kidnapped and raped over a long period of time, she gains near-universal sympathy.