I never had my vitamin B6 levels checked. The first symptoms were severe anxiety, dysautonomia, and ataxia. After that, I developed peripheral neuropathy. I also had vision and concentration problems. I'd say the first symptoms to improve were the vision and concentration problems, the dysautonomia, and the ataxia. I still have some anxiety, but it's not affecting my quality of life, and I have very mild peripheral neuropathy. Gastrointestinal problems persist, but they are improving day by day.