Hi Suzie. I am a type 2 extremely gluten intolerant and my Mum was (as I now know) a type 1 Coeliac. In all her 64 years it wasn't picked up until 4 weeks before she died which was way too late.
It is good that it has been diagnosed for you. The problem with Coeliac/gluten intolerance is that people who find they can't eat gluten carbs any more tend to eat gluten-free ones instead. Unfortunately they typically are much more carb-dense than gluten carbs, so weight gain can be a problem.
I was fortunate in a way because my digestion finally collapsed about 18 months ago, which is when I discovered the gluten intolerance, and I could eat very little. Carbs have always been problematic for me but even more so after the collapse so I had to dump those too. It was by following the Specific Carbohydrate Diet (SCD) which is fairly low carb that I have been able to rebuild my digestion. It is still a work in progress but I am much better than I was.
I have learned an awful lot about Coeliac/GI over the last 18 months and Diabetes, particularly type 1 is very much linked, as are a lot of other diseases and health issues.