Is there a neurologist expert in autonomic neuropathy in Australia?

I have been diagnosed with autonomic neuropathy but my GP is very uninformative about this. I have only been given fludrocortisone tablets. I feel that I need better oversight and advice as to how to manage this condition. My symptoms are low blood pressure, dizziness/unbalance, sore burning toes, blurry vision and fatigue. I am told I do not have diabetes. I have Hashimoto's thyroiditis and vitiligo. I am 84 years old.