In me, long-term, uncontrollable stress is what causes depression.
Mostly (pre-ME), it's been fairly straightforward.
I go nuts with anxiety, run around in circles talking to myself, can't eat, can't sleep, then wallop.
Full-blown clinical depression with full-blown anhedonia, when the negative feedback loop for ACTH breaks and turns into a feed-forward loop.
I really can't see cbt fixing that.
It's organic.
Changing the situation to one where I am no longer subject to uncontrollable stress fixes it.
Or SSRIs, eventually.
My "negative thoughts" are all about
reality.