Can someone tell me why my TSH reads high but I need lesser dosage of levothyroxine. I was on 0.1mg or 100mcg and it read high about a month ago or close to 9 (sorry, I don't recall the terms). I have since been taking only half of my usual dosage that I've on for many years prior to this episode. I believe using Himalayan salt may have contributed to my going hyper along with a lot of bad stress....I cut it out and took time to work through the stress and I am now feeling better and still on only half dosage. I was just wondering why high TSH and lower med dosage needed. Thanks in advance.