Your tiredness and headaches might suggest your Thyronorm (levothyroxine) dose needs checking, as thyroid imbalances can cause this. Nausea and burping can sometimes occur with vitamin supplements like Meconerve (vitamin B12) or Tayo 65 (vitamin D3), especially if taken on an empty stomach. Yes, it is best to temporarily stop your Meconerve and Tayo 65 supplements for about 10 to 14 days before your blood test to ensure accurate results. Please consult your doctor before making any changes to your thyroid medication.

Since your TSH levels are already low on 175 mcg of Thyronorm (levothyroxine), increasing your dose is not safe and could cause harmful side effects like heart palpitations. Sometimes, a low TSH means your body is already at its limit for thyroid hormone. I gently suggest discussing this with your doctor to check your free T3 and T4 levels, and perhaps explore other metabolic or hormonal factors that might be slowing your progress.

Since your thyroid blood tests are still high, it indicates that your body is not getting enough thyroid hormone, which slows down your metabolism and leads to weight gain. Your daily thyroid medication, such as levothyroxine, likely needs a small dose adjustment. I highly recommend discussing these recent test results with your doctor soon. They can safely adjust your dosage to help bring your hormone levels back into balance and get your metabolism back on track.

Generally, having your period does not cause a sudden, significant spike in TSH levels while taking Thyronorm (levothyroxine). While monthly hormonal shifts can cause minor thyroid fluctuations, a sudden spike is more likely due to other factors. These can include missing a dose, taking your medication with food or coffee, stress, or starting other medications. Please don't worry?this is very common and highly manageable. I recommend discussing this result with your doctor, who can help identify the cause and safely adjust your levothyroxine dose if needed.

The Mirena IUD releases a hormone called levonorgestrel locally within your uterus. Because very little of it enters your bloodstream, it does not affect your thyroid hormone levels or interact with your levothyroxine therapy. You can safely use both. Additionally, Mirena is highly safe, effective, and fully suitable for unmarried women and those who have never given birth. It is a wonderful option for long-term birth control.

Your current TSH of 0.330 uIU/mL is in a great range for conception, so you should continue your current dose of 100 mcg of levothyroxine for now. Once you get a positive pregnancy test, your body's demand for thyroid hormone will increase quickly, and your doctor will likely need to increase your dose. Please contact your physician as soon as you confirm you are pregnant so they can check your levels and adjust your medication safely to support you and your baby.