Erin, I don't take meds at all, and routinely run low. These days, it's just how my body seems to work, having got my Diabetes into a good place (touch wood!). I've had a couple of Libre sensors, monitoring my glucose levels, and they show that overnight, I'm quite often in the 3s for long periods, and lower. I also have frequent 3s during the day, but for etimes, for more brief periods. I also have 3 during the day, but not usually for hours on end. I have to say, I have absolutely no ill-effects of going as low.
It is my belief that many non-diabetics run at the sort of levels I'm exhibiting now, but they have no idea, as they don't test. Why would they?
That you are taking Gliclazide changes the game, in that your bloods are being encouraged to go low, and this could have implications, for driving etc., even of for nothing else. If you are seeing lots of 3s, and low 3s, I would think it's time to have a chat with your support team, as it may well be your medication could be trimmed back a bit, and thus also trim back the frequency of your lower numbers? Otherwise, you run the risk of having to eat to keep your numbers up, whilst your medication is trying to drive them down. That doesn't seem to make sense, does it?
I am tempted to pass comment on your frequency and impact question, but it would be a hypothesis, as I haven't done much reading on it, for anyone taking drugs designed to drive the scores down, so I'll pass. I do, however, understand that some T1s lose some hypo awareness if they have lots of them, but I have no idea beyond that.
I'm sure someone more knowledgeable will be along when the forum livens up a bit this evening. Good luck with it all!