Elevated b6 means that your B6 is not being converted to p5p and is just piling up. You dnt have To take supplements to have high b6 because b6 is in almost everything you eat.
Candida disrupts your B6 conversions so therefore you most likely have a candida issue in your colon. You should do some enemas to see whats going on in your stool. Candida could have spread to your intestines from a yeast infection or vice versa.