Hi, the reason why you have been advised to take inhibitors is mainly because your insulin response is not good because of insulin resistance which is common in T2s.
The inhibitors will supplement the insulin required to offset the higher blood glucose levels.
I take sitagliptin 100mg. And so far no side effects.
You may in the future want to reduce the dosage or stop taking it if your Hba1c and fasting levels are near normal, this will happen if you get the balance right for you and reduce the carbs sufficiently. But please talk to your doctor, not the dsn.
Stay safe.