Step 4: Read and complete the decision guide to learn more about your symptoms.
Forgetfulness Memory Loss
Although these are vague symptoms that are part of many conditions, they can be signs of an underactive thyroid. Talk with your doctor about these symptoms and your concerns about your memory.
Your doctor may perform a blood test called TSH to make sure your thyroid gland is making enough thyroid hormone. If it isn't, taking thyroid medication is simple and should improve how you feel.