But jobs change all the time, new managers, new hours, new tasks.
And the worker can't help that, so a job you loved changes well beyond your expectations over a few years, just up and leave? Not wait a while til things change again, may be for the better?
That was my situation exactly Flooffloof. Four happy years in a job I loved and was proud to do, and then six months of hell prior to going off sick because of a change in management.
Thing is, I can look back now with clarity and identify points where things could have been different, or where certain issues were a definite trigger. But that's with the hindsight of the mentally well again. At the time, in that fog of growing stress and depression, being able to think so clear-sightedly and make decisions that would have an impact not just on me but my family, was impossible.
Also, it wasn't a case of simply waking up one morning and thinking "I know, I'll go to the GP today and get signed off sick with stress". It was a gradual drip-drip-drip where I didn't realise quite how bad it was getting because I was trying to power on through, putting how I was feeling down to the 'natural' stress of dealing with sudden enforced and, as it turned out, constant change; attributing the warning signs of never quite feeling well, always being tired etc to 'coming down with a bug'; doubting my own judgement and second-guessing every decision I made until I ended up in paralysis by over-analysis because I couldn't trust my own thoughts. It took what would have once been called a nervous breakdown for me to realise how bad things had become, and by then I would no more have been able to go through the process of resigning and finding a new job than I would have been able to solve the Brexit challenge single-handedly.
I take my hat off to anyone who can find the wherewithal to leave their job and find another while in the midst of acute stress, because that was far beyond me at that point in time.