I have hashimotos thyroiditis. My levels have been looking fine after taking 88 mcg levothyroxine. 1 month ago I went down to 75 mcg of levothyroxine, because I was having irritability issues. Starting 2 days after my new change in dosage my lips have been dry, pale, & shriveled feeling on the inside. I have switched my toothpaste to an SLS free one, been taking a daily multivitamin (rich in B vitamins), increased water, & been using a dry-mouth mouthwash. None of these things have helped. Is this a side effect from my change in dosage?