Anna
its is quite common to fail GCT and then be nothing wrong
I failed the GCT with my twins- didnt have to do the next test as i had them instead- oops
I also failed it this time with my singleton. Had to do the two hour test- its no biggie and passed it no probs. So maybe we just take a little longer than the recommended time for our sugar to return to normal after that 'yummy' drink!

I was pretty confident that all was going to be fine as well, before i did the second test - no signs or symptons of GD. My mum also has type 2 db as well. But all is good here

Good luck and let us know how you go!
odette