It depends on the location of the stinging feelings. Typically, uncontrolled diabetes impacts the ability of the nerve endings to work properly. This usually shows up in the feet and
hands, affecting both sides equally.
If you were just diagnosed and didn't have high glucose levels for many months on end, you may be able to reverse this uncomfortable feeling through self care behaviors involved with a healthy lifestyle. It all starts with getting information from a certified diabetes educator who will work with your doctor to come up with the best plan for you.
In clinical practice, I have witnessed that it may take up to six months of ideal glucose levels to reverse this feeling. Other treatments are available (everything from medications to minor outpatient surgery that releases the compressed area around the nerve to resolve the pain permanently). You may ask your doctor for a neurologist consultant to further assess your situation.