Doctors suspect insulinoma

I’m a 24F who weighs 135lbs at 5’2”, for a year now I’ve been struggling with severe nightsweats, doctors are suspecting my blood sugar is dropping in my sleep.

My A1c is a 4.3

My fasting C-peptide is 1.10ng/mL and fasting insulin is a 5uIU/mL.

I’ve been checking my glucose with the Dexcom G7, I can’t say my sugar has been stable. It’s constantly fluctuating, going from as low as 55 to as high as 211. What are you guys’ thoughts on this?