Originally Posted by
essnce629
What symptoms? You can have both low thyroid and high thyroid, which have different symptoms. Also, iron deficiency (low ferritin) mimics low thyroid symptoms. I've had hyperthyroidism (autoimmune Grave's disease) and my symptoms were fast heart rate and extreme itchiness all over (palms, scalp, privates), especially at night. My iron deficiency symptoms were extreme fatigue (napping daily), fast heartbeat, always being cold, and shortness of breath while doing the simplest of activities (taking clothes out of the wash). An endocrinologist treated my hyperthyroidism (I'm now in remission) and a hematologist treated my iron deficiency with regular IV iron infusions. My iron deficiency is caused from heavy periods, most likely due to fibroids.