I have experienced the low/depression thing. It is not fun; it is relentless. Recently, due to tight control and recent weight loss, added to traveling by train w/massive layovers--24 hour trips, by the by...and then ending up in snowy, icy conditions, hauling stuff, and so on...
It's been unrelenting. Manageable, whatever that is, but unrelenting. And get this...I gained three pounds in five stupid days thanks to lows. It makes me want to scream. I hate this.
Such is life. It's not some easily labeled thing, is it? I won't have the arrogance to tell you to just "don't get low," mainly because if it were that easy, well, you'd have done it. Take heart on the A1C as well. I try to notice the little things, like better mental function and focus that come with exercise and better control. I am trying to configure different basal rates without sending myself into DKA or seizures. I take pride in the little victories, hang around with non toxic people, ignore the rest...and commune with cats...and avoid becoming stagnant, mired. That's the worst for me anyway. I can't fall down without a struggle to get back up, if you follow. I avoid lows. It's the best I can do right now...and I swing down more than Tarzan...when I approach consistent 100 levels which is by far the most frustrating thing...but I continue to not stop taking care of myself. And if you are stuck, and you accomplish something you really don't have any motivation to do, it feels great, like a victory. Because it is.
I am nearing the basal change point...I woke up w/a BG of 29 mg/dl. Not good. But I hate, hate highs. I think some people just don't feel them like others do.
When it comes down to psychology, by the by, you can frame it as officially as you would like, but it's still all theory. Medicine is an art, not a science. Educated guesses...here's mine: lows destabilize neurotransmitters...yes, this is obvious...and vague. I think T1 is a smart person's disease. Anyone on here, even the littlest ones, could wade their way through medical jargon. Don't sell anyone else short. Read all you can (and let me know, please :-) Stability in blood sugars affects neurotransmitter levels (cue condescending remark). Like right now. Unable to sleep. Easily irritated.
I hallucinate when low. I also become extremely emotional, like an explosion. Not always, though. Sometimes, I just become lethargic. The thing is that I never want to eat or drink anything when low. No low is the same as another...
Keep on keeping on. I think the cgm would make life much better. I don't have good insurance, though I do chec 10X a day, which doesn't act as a safeguard (arggh).