Hi Doctor, What is the symptom of low calcium, I just had my thyroid removed 3 months ago and on 125mg a day thyroxine, initially after surgery i required 6 x 600mg calcium tablets a day, gradually reduced to 4 then 2 a day, and 4 weeks ago stop calcium tablets. and no calcium tablet required at the moment after the last blood test( 4 weeks ago), lately I have a feeling of numbness in my hands and feet, legs. Is it lack of calcium cauing these. Doctors has preserved the 4 parathyroid glands, one in original position and 3 implanted in the muscle. Thinh Nguyen