Thank you for your query.
Constipation is a common issue with many diabetes
You should add more dietary fibre in your diet
. Increase the amount of vegetables. Secondly maintain proper hydration in this summer.
Thirdly you can drink 1-2 glasses of lukewarm water just after getting up.
Fourthly you can try doing pabanamuktasana after drinking warm water.
Last but not the least you can try bulk forming seeds like basil
For further information and advise you may talk to me on private consultation. Thank you.