Welcome to the forum
@Dare
Some members here find lower-impact exercises such as swimming or seated exercises. Is your pain related to an injury or condition like arthritis or similar?
As you have beej told you are ‘at risk’ it’s quite likely that a few fairly modest tweaks to your menu might help a great deal
🙂
Many new members find it can be really helpful to keep a thorough food diary for a week or two. Note down everything you eat and drink, along with a reasonable estimate of the total carbohydrate content (not just ‘of which sugars’) in all your meals and snacks.
It might sound like a bit of a faff, and will involve weighing portions, squinting at the fine print on packaging, and possibly looking up things on the internet, but it will give you a really good idea of which foods are the main sources of carbs in your menu - Once you can see which meals or snacks are your ‘big hitters’, and where carbs might be unexpectedly lurking, the process might also suggest some likely candidates for swaps, portion reductions that can help your metabolism keep your glucose levels in range.
Good luck, and let us know how you get on
🙂