I am the same height as your husband Rosie. I feel absolutely fantastic and energetic! Thanks for the advice.
As you feel well, I would urge you not to be overly concerned. What is your current BMI? Whilst the BMI isn't an ideal way to assess weight/stature/health, for most people it is a good indicator. Those it does no favours too are heavily muscled rugby players and other "bulky" sports", for instance, and those who are either extraordinarily tall, or vertically challenged.
When folks lose weight, it is sometimes difficult for those around them to get used to the sleeker shape. Additionally, as we put on a few years, our skin can take longer to snap back, when weight reduction occurs. For myself that meant my upper arms, and to a much lesser extent my neck have taken some time to adjust. Now, almost 3 years on, I don't think my arms will ever be as I would ideally like them to be.
If it's any comfort, I saw an Endochrinologist about a month ago about something non-diabetic (but the Consultant does also advice on diabetes at Consultant level). During discussion he asked me about my general medical history and asked if I was diabetic, so I explained although I had been diagnosed in 2013, I had since been removed from the register and marked "Diabetes Resolved". He then trawled back through my medical record, and spent a moment or two reading the GP notes and reviewing my various blood panels.
He asked if I had trimmed up at all over my journey and I explained I had, which had significantly improved my insulin resistance and carb tolerance. In a heartbeat he responded asking me to please ensure I didn't regain the poundage I had lost as that, along with dietary changes, was an important part of my success.
I weigh 47.5kg, 160cm, and therefore a BMI of 18.5, so I am right on the lower end of the healthy range.
Feel free to show your family my post if you feel it would help.