Hello....I understand your concern. Recurrent muscular spasms could be a symptom of hypothyroidism. Since you have already undergone a ct which has come out normal i would suggest that you get your thyroid function tested. Another possibility is severe vitamin d deficiency so it is advisable you get levels of vit.d tested as well. Also get an ekg as well as as an electrolyte panel done. If it is indeed hypothroidism it is easily amenable to treatment. I prescribe my patients with similar spasms vitamin e (tocopherol) along with l-carnitine for symptomatic relief till the diagnosis is confirmed. Consult you local physician who will guide you on how to go about the tests. I hope this helps... Regards,