Hi, I have had hypothyroidism for 11 years. I am currently taking 175mcg levothyroxine a day. I feel tired from the minute I wake up til the minute I go to bed. Have headaches throughout the day, hair loss, vision problems, palpitations, chest pains, pins and needles in arms/legs. I am so sick of feeling unwell all of the time. My regular blood tests come back normal. Help!!!! I don't know whether I should ask my doctor for a referral to endocrinologist? Is taking 175mcg thyroxine safe??