Hi and welcome to the forum
@melbella. I agree with all the above comments.
What caught my eye was your low sugar episodes after not eating for several hours.
If You don’t mind me asking, how low did you go? And did you have something carby in the preceding 4 hours? You passed out, what did your medical team say about you low blood sugars? What did you do to fix the low, or did your blood sugars rise without intervention?
In general CGM’s can be less accurate outside the ‘normal’ blood glucose range. Most of us, if we go low, cross check the CGM reading against a finger prick blood test. Often the CGM can show us going low, but in fact we are okay. For example, the CGM maybe reading 3.5 but a fingerpick will show us at 4.5. The finger prick is the reading to go with.
Outside of the CGM readings, there are a number of reasons we can go low.
A reactive low - sometimes the pancreas can over produce insulin following a carby meal. This causes your blood sugars to temporarily drop. It’s called a reactive low. Usually your liver will intervene and bring your blood sugars back up.
Blood sugar lowering meds or if you are on insulin therapy can sometimes cause low blood sugar episodes, but I see you are diet only.
Alcohol, especially drinks with sugary mixers can cause lows.
There is also a condition called Reactive Hyperglycaemia whereby the pancreas secretes too much insulin called an insulin overshoot. It is a distinct condition. With RH your blood sugars can get dangerously low. I’m going to tag
@Lamont D who has this condition. He is very knowledgeable.
I’m not suggesting you have this condition, as it’s not common, but with none medication lows it’s a consideration. These are just general observations. Itoocan go very low. I have never passed out as I intervene. I am also low blood sugar sensitive and I will wake up if this happens to me at night. I imagine your diabetes medical team are aware of your lows. Wishing you well, Mel.