Hi UKGuy35
Welcome

.
Well done for cutting down on alcohol; I am glad that your symptoms have improved. You might have some alcohol-induced PN though this can vary a lot. In my case it is in my hands only and is stable/decreasing since I stopped drinking.
I am a bit surprised that your doctor prescribed amitriptyline. It is a tricyclic antidepressant; I have never heard of it being prescribed in circumstances similar to yours. Perhaps you could discuss the reasons for the prescription with your doctor.
Best wishes.