You should most definitely ask about this as it could be down to many things, some not Diabetes related.
I presume your Specialist is an Endocrinologist and will have knowledge and experience of many things, not just Diabetes. If he doesn't know he is the perfect person who can get you referred to the appropriate speciality.
I get a similar thing but that is totally due to an old neck injury affecting the nerves, however nerve problems can also be due to Diabetes. All the more reason to mention it.