I would have to agree with you, from personal experience. About 5 years ago I believe I might have overdosed by mixing OTC medication by accident, it was a combination of neurotropics and other focus medicine or at least after reflecting on the whole ordeal I believe this to be the case. I’ve never been one to consider suicide, never understood how someone could take their own life but at that specific moment in my life I felt that I was literally losing my mind and at any moment could go crazy and I would rather kill myself than to go crazy. So to touch on what you said, even a person that would never, ever do that under any circumstances within a sound mind can absolutely do it if the pain or suffering is so severe that killing one’s self is the only way one can save one’s self from what they’re going through.
I learned through that experience that the mind can be so fragile. My situation was induced from over the counter medicine. My heart goes out to individuals that have to deal with something like this due to mental disease… it really is something that affects everyone one way or another.