Ketoacidosis with a normal blood sugar?

I am not looking for a diagnosis here, just other people's experience.

Has anyone else ever experienced diabetic ketoacidosis when their blood sugar was in the optimal range? I vomited three times in a 30 minute period starting at 2am and thought I ate something a bit off. I slept the rest of the night no issues but by late morning (10 :30) was vomiting again and ad.itted to the ER.

I had ketoacidosis and was successfully treated and released. However the attending doctors and the endo were all a bit confused that my blood sugar was 4.1 when I arrived and reached a maximum of 12.0 while I was there for 24 hours and all blood panels every tow hours were perfectly fine.

Anyhow don't want any armchair diagnostics thanks, i had a team of doctors all over me. Anyone else ever go through that with no explainable cause? Did you figure out what happened in the end? Has it ever happened to you .ore than once in the same way?