I don't know how to categorize it, because the thing that has tortured me most has been my own mind, but in the sense that I feel too much. I feel a profound sadness for particular people (can be those I know, as well as those I don't), though the reasons are sometimes unclear.
It isn't depression, though the feelings can trigger depressive episodes from time to time.
I don't proclaim myself an "empath"; its not this "look at me being such a good person" trait I parade about with catchy photos on social media (I do not have those anyway) or any such ridiculous shit. It's just an all encompassing sadness that feels like it's eating me from the inside, and my stomach starts to feel sick, and all of the world's corners seem sharp and ominous...and I try any and everything to evade the sadness.
I drank heavily for 15 years, I've done and still do drugs, etc, all in the hopes of muffling the thoughts and sensations. But I wouldn't say that addiction has been the problem; it's simply a symptom of a far deeper problem.
Don't misunderstand me though. I do not sympathize with every single person I encounter. I'm not some hero who is out there doing the good work and making a difference in the world. I want to get as far away from the sentiments as I can, because I do not feel strong enough for any of it. I can't save myself, much less any one else; and I guess that makes me feel hopeless and guilty on top of everything else.