My H would not be open to this forum...infact he doesn't even know about it and for many reasons I wish to keep it that way...knowing him as I do he would/does not want to talk about what happened...it is all too painful to him and due to his ongoing battle with depression he avoids those things that trigger it...
That being said, I also disagree that Depression and MLC are the same thing...although they are hand-in-hand at times. My sister suffered from depression but she was not a MLC'er...I have suffered from depression but am far from being a MLC'er...however, MLC'ers do suffer from depression...and possibly depression leads to MLC...but then you get into the chicken or the egg being first...
My H still deals with depression, takes meds, and takes care of himself emotionally...so while he may be depressed at times he is no longer in MLC.
I hope this helps clear it up...and then again, you may have just meant that all of them are terms for various types of depressions...they type not being so much the issue as the title it brings.