I am so sorry. I'm not going through anything to the extent of what you are, but i am now in a position where I have to hide any suicidal ideation or I will not get a job which I've worked three years for. And for me that is painful enough so I'm so so so sorry for what you're going through and I can't begin to even imagine what you must be feeling. Classic example of people valuing covering their own behinds rather than an actual human life.
Cases like these make me sick to stomach when I then read the World Health Organization talk about importance of equality, particularly regards to health. I'm fact, I'm not 100% sure but could your case potentially be viewed as disability discrimination?
Edit: only reason I mention disability discrimination is because if you've experienced mental illness and/or suicidal ideation for a lengthy period of time, you could argue that it is a discrimination case.