Low blood sugar detection

Ive basically lost my ability to detect low blood sugar in the past 6 or so months. I used to shake when my blood sugar was low and go into a dissociative state. I already experience derealisation / depersonalisation regularly since I was a child and low blood sugar would feel similar to those episodes.

But now I don’t even get shaky when my blood sugar is low and I have gone a couple hours without realising (ie sitting playing the guitar with no reason to check, reading a book). It also seems to be disrupting my sleep by going low when it shouldn’t be no matter what time or what amount of lantus I inject. I can test my blood sugar before bed and it’ll be 7 and it has dipped low or it can be 14 and it somehow drops into the lows.

It’s all around just a scary experience. I feel like my brain cells are being killed off and I’ve gotten really stupid because of it lol not sure that’s how it actually works but it’s how it feels.