Since I have had Hashi's, I first began losing hair. Now that I have been put on both Cytomel and Synthroid, that has stopped. But now, when I have gone to get my gray roots touched up, the gray doesn't process! The rest of my hair is an espresso brown but the last two attempts to color my roots have resulted in a weird burgundy/violet color - but on the gray roots only!!! My stylist is baffled as this is the same product I have used for many years. Wonder if my dermatologist will know???

Looks very weird....any thoughts????
THANKS!