Many of the expressions of AFM relate with the impacts of Thiamine Deficiency this article goes into the commonalities of AFM and thiamine and how it may relate.
Mental Confusion
Inducing Mild Thiamine deficiency in 11 Women
What happens when you place 11 Women on a thiamine restricted diet in a controlled clinical setting, this shows an interesting insight into the wide variety of symptoms when in a mild thiamine deficiency state.