Ok, so I'm on to my 3rd endocrinologist next Tuesday. Symptoms: severe weight loss (95 lbs, change in appetite only when I'm in severe pain), blurry double vision, nervous energy, weakness, muscle loss, joint pain, pain in the bottom of my feet, pain in my hands, neck pain, difficulty swallowing (no goiter), small nodule (as of last May), heart skipping a beat, heart palpitations, blood sugar changes, constipation, low body temperature, low blood pressure, numbness & tingling, muscle spasms, twitches, dry mouth, eyes, skin, thin skin, severe brain fog, difficulty concentrating, among many others. My question is that besides a 3 month period of hyperthyroid blood results, brought down with 30 mg of methimazole (currently not taking) and a TPO of >1000 (normal<35), TSH, FT3, FT4 are all within normal range (do not have my latest labs, yet. was told they accidentally mailed them to the wrong person... confirming my theory that I need to move on to a new endo.)
Obviously, I have Hashi's, and obviously, I'm suffering. So my question is what do I say when the doctor, yet again, says "your labs are within normal range there is nothing I can do for you"??? I usually cry when the doctor says this, which I'm sure reinforces their prediction that it's not thyroid... I'm just a basketcase. I want to be strong during this appointment, educated and well prepared with lists and printouts (as Hashimoto's might rob me of my brain that day and I will need back up).
"How ATDs Work
Antithyroid drugs inhibit the formation of thyroid hormones by interfering with the incorporation of iodine into thyroglobulin and its residual compounds. ATDs also inhibit the coupling of iodine with tyrosine and they inhibit thyroid peroxidase enzyme.
Antithyroid drugs also decrease levels of thyroid stimulating immunoglobulins (TSI) in patients with Graves’ disease. This suggests that ATDS may have mild immunosuppressant properties. In addition, PTU, but not methimazole, inhibits the conversion of T4 into T3, quickly lowering FT3 as well as FT4 levels.
For this reason, PTU is more often used in cases of thyroid storm or when severe thyrotoxicosis (condition of excess thyroid hormone) is present. PTU is also recommended for pregnant women since it crosses the placental membrane less readily. PTU is also the only thyrostatic drug approved by the American Academy of Pediatrics for nursing mothers. However, PTU has a shorter half-life with a 100 mg dose waning in 2–3 hours. Doses of carbimazole and methimazole from 10–25 mg may cause effects for up to 24 hours. Half of a dose of PTU is gone (its half-life) at 75 minutes compared to 4–6 hours for methimazole and carbimazole."
- Suite 101 - Antithyroid Drugs in Graves' Disease