You don’t mention if it is all day or a certain time of day? But you do mention night fluctuations. I have dawn phenomenon and it can affect the whole morning.
I have always found the much higher BG levels require a lot more insulin for me to bring my levels back down. Plus it makes you want to give too much insulin trying to get it to come down thinking you need more but it’s really just taking longer to work. You have to be careful of that unless you want to start chomping candy or drinking juice! It’s easier to deal with by stopping it at a lower number. Dave’s right in that a CGM really helps to stop it from happening and to learn trends to try to deal with it.
I have dawn phenomenon and I didn’t know I had it until I had a CGM. Sometimes I would wake up to high numbers and sometimes not. When I got my CGM I could tell I climbed every morning usually around 6am, but sometimes it can wait until I had been up for an hour. And in fact for me I avoid eating or eat something very low carb in the mornings as my BG level will disproportionately rise and is too hard to control.
The best way to help with that was when I got an insulin pump and could program higher insulin amounts in the mornings, and lower insulin the first 5 hours of sleep.
This I found helpful to understand why I am so bad in the mornings even after I’ve dealt with my spike. I hope this helps.
Jim_in_CalgaryType 1 or LADA
@NatureOrbs - Carbs (or glycogen released by your liver at around 4am) are not the predominant cause of early morning rise in blood glucose.
Your body has an adrenal release (it secretes higher levels of growth hormone, cortisol, glucagon and adrenalin). These effectively increase your short-term insulin resistance, after which even normal low levels of glucose in bloodstream cannot be neutralized.
PS, I didn’t see the Libre CGM posts until after I posted, but Dave’s right again! It doesn’t have alarms to tell you when you have climbed too much or when you are dropping. Both are extremely useful by being able to catch it (and wake you if needed) before it gets out of control.