Usual symptoms, excessive thirst etc.
Well, seeing as we don't have many members with MODY (although we might have more than we think, it does tend to get misdiagnosed as T2 or sometimes T1), I guess my reply is better than nothing, despite not having the same type of diabetes as you do.
Do you use a meter to test your glucose? Are you still having those symptoms and high blood glucose during the day now you're not pregnant?
I know very little about GCK MODY (as much as I could learn with a 5 minute Google search to be precise), but what I learned seems to say it's characterised by elevated morning glucose but not much of a blood glucose rise after meals.
Is that your experience as well? (Outside of pregnancy that is, pregnancy makes all thing diabetes different!)
With the carb counting and insulin during pregnancy you'll have found carbs make you rise, and you needed the Fiasp/NovoRapid for that, but do you still rise after eating carbs now?
Many of our members are T2, and they often find that reducing their carbs gets rid of high BG after meals. But I have no idea how this translates to GCK MODY.