Sickest?
As part of my training I had to live with an older supervisor while on a posting. It started out all right, but the fat bastard was addicted to phsychological bullying. I was put through every nasty s*** imaginable - humiliations in front of peer reviews, accusations of duty abandonment, inferrences that I was some sort of lewd f*** were bandied about, my priveledges were taken away, and situations were engineered so that I could almost never have any time off. On top of that, anyone who would say something in my favour would start getting the same treatment.
That whole year I got really physically sick, started smoking (I had previously only smoked a tobacco pipe on Saturday afternoons), I lost about 20kg (about 44 pounds) - about 3/10 - of my body weight, would get a nerveous rash and lost contact with everyone I cared about. I gave up my hobbies, stopped exercising, stopped playing the piano and couldn't sleep. I started to believe the bad things that were being said/implied about me. I wanted to walk away from everything, but if I had, I would have had absolutely nothing I cared about left - so I stayed for the sake of the people I was doing this for... anyhow, that was the worst time/year of my life, when I was the sickest.
Postscript, thankfully, I am back to my usual quiet self (no smoking either), in a much better assignment.
In some strange way, if I had the opportunity to go back and change things, I don't think I would.