In all fairness, anyone claiming they are depressed, they better have a real f*cking reason, don't f*cking tell me you got everything in your life, good health, money, gf, wife, family, friends etc but somehow you are in this ''perpetual dark, sad, suicidal'' state of mind for no apparent reason, nah, nikka please, if you are like that then you are a f*cking pussy. Now if the love of your life broke your heart and you lost her forever, plus other serious problems in your life going on, etc, i can understand, severe depression can set in (I know from experience)
Incidentally, there's plenty of discussions in the psychiatric community on these types of "normal" life experiences should be medicated. Precisely because there IS a cause ("don't interfere with natural healing processes"). There can be many triggers but a lot of the time you can't point to any single thing and say, "aha, we found the cause!"
Someetimes the question of medication or not can't be easy to answer, even for an "expert."
My aunt has been feeling low for years, is basically handicapped, in physical pain and has these crying fits. I gently approached the idea of antidepressant but it was a hard NO. I was like try it for a month and then just get off if it doesn't suit you, but it was a NO. Another aunt was "burnt out" and got anxiety reactions whenever she stepped into work.. She said the anxious feeling inthe pit of her stomach ent away after a could of months. Sides: sleepier and hungrier, but it was still worth it.