I have read your query and feel that your symptoms are due to the development of diabetic neuropathy
Diabetic neuropathy results in micro vascular injury
of small blood vessels supplying to the nerves,which ultimately damages nerves.These neuropathies can involve various nerves of body including your autonomic nervous system.
You must control your blood sugar levels meticulously and consult a neurologist
to manage your neuropathic symptoms.
You should be jointly managed by a diabetologist
along with a neurologist.
I hope it helps.