I think I should point out that you shouldn't let a repeated diagnosis alter the outcomes of what it affects. Take a few days to let yourself rule out what you don't really believe and give yourself an objective look at your symptoms. Keep in mind, we're discussing a cycle; it's not remotely helpful just to tell someone they're depressed, so I think you'll find more accurate answers when you try and remove this popular opinion from your self image. You'll also be able to talk to medical professionals more easily.
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"Standing on a well-chilled cinder, we see the fading of the suns, and try to recall the vanished brilliance of the origin of the worlds."
-Georges Lemaitre
"I fly through hyperspace, in my green computer interface"
-Gem Tos