Is there a proper name for my recent experience? I don't meditate often, and I've never had an experience like the following while meditating, but I feel that the following experience probably has a proper name in Buddhism (or Hinduism for that matter).

A few days ago, I woke up to a horrible bout of depressive thoughts (deep depression being something I have been struggling with for almost as long as I can remember). I have gotten better at combating it recently, but this particular time, after the storm of bad thoughts had been beaten back, I had this feeling that my awareness somehow expanded. I felt as thought I could see my emotions and opinions and thoughts pass in front of me, almost like I was standing in the middle of a carousel with different lenses passing in front of me, those "lenses" being my notions and emotions through which I viewed the world; it was as if I had somehow "stepped back" 15 or so feet to view from a more removed vantage point. I noticed that my ability to "manage" my emotions went through the roof, and I was much, much happier all day. I also noticed that it was hard for me to say words that I felt were untruthful, or to say things I didn't know were true or not, as I could feel in my stomach whether they were truthful or not. I also (weirdly) felt as if I could tell when others said something they didn't actually believe, or if they were lying. I felt as if most "talk" was mainly chatter, not in a condescending sense, but more in a "not worth it" sense. I felt as if many things I used to take stock in just became... flat, totally uninteresting. I felt this state until I went to bed that night.

But now, a few days later, I'm back to the way I was (as far as I can tell) and I also had a depressive bout as well (I'm guessing somehow brought on in part by this experience). The things that didn't matter that day, the opinions and expectations of others, their ideologies and so on, suddenly popped back up, are no longer "flat" so to speak, and are "real" again -- though not as "real" to me as they had been previously.

Is there a proper name for this state of consciousness?
Common signs of depression:

---> Decreased Interest or Pleasure

The second core symptom of major depressive disorder is a decreased interest or pleasure in things that were once enjoyed. A person exhibiting this symptom will show markedly diminished interest or pleasure in all, or almost all, daily activities.

---> Disengaged

A developed practice of being distant or disengaged, uninvolved with things that usually matter, negligent towards loved ones.

Depression can be dangerous, do not take it lightly and seek proper medical support is also a preferred way.