I think there are different facets to depression which may or may not be experienced in episodes. But the real suffering is still there. I also think what needs to be kept in mind is part of the professional diagnosis of mental illness depends on how it is impacting a persons basic functioning in life. People can be suffering allot but still perform the necessities of life, including making it to work, eating, washing, and so forth. So to some psychiatrists, they are "functional" and not requiring care.

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