Hi Kim. Welcome.
The 7.3 alone is enough to confirm GD, even tho it's only been once.
What are your morning fasting levels like? That's the one I have trouble with, which is why my insulin keeps getting increased I'm now on 28 units!!!
I had total denial for the the first few weeks, I didn't think they had a clue. But now when I cheat I can see they were right. And for me with acceptance came better understanding.
I still say a big boohoo tho to GD! It sux. But I suppose there are worse things hay