So during the day my sugar fluctuates but nothing out of control. However, when I’m sleeping it seems to stabilize meaning it’s changes by maybe 2-3 points nothing drastic. I’ve been told that is “odd” and “not particularly normal” by my doctor. Has anyone else experienced this?

This is an awesome chart! Good job
This is normal and depends on your carbohydrate intake before sleeping. If I consume too many carbs before bed, I observe my levels fluctuating wildly throughout the night.
If it goes up too high exercises you can bring it down but there are times I have to walk 10 minutes to two hours just to keep it mid ranges before drops back. it's close to metformin effect.
It looks the same for me if I don't eat heavy carbs(bread an the likes) at dinners.
I think its normal. To me it looks like you just digest a little in your sleep which can be a good thing. As long as it comes down like your chart i dont see an issue
That’s pretty normal for me: rock steady through the night, a little dip before breakfast, then it all depends on what I eat, how the rest of the day will look.
Some nights are like that for me and other are more wavy
That's not odd. Body at rest with no carbs is stable.
I've had that kind of sugar whenever I eat mostly protein and fiber. It's a different story if I have SOME type of carb source during the day or dinner. 😅