I gained 30 kg with my first pg and was borderline GD. with my next 3 I was on insulin and I only gained 12kg. I can't see how the weight gain is an issue. If baby is growing nicely and you are feeling healthy with no issues with the GD I can't see why they have a problem

Your BSL seems fairly good to me.. Maybe a little on a low side from what I remember. I was averaging around 6-7 before meals with DD and was on insulin from 13 weeks. after meals was anywhere from 8-12. It was high but still ok..