I am having tingling sensation and numbness in my hands n fingers since a day, it has been often since two months. Having hashimoto thyroiditis. I am taking 125micromg eltroxin tab. Recent tsh was 9.3. What is the reason behind this weakness and tingling sensation of hands and fingers that persists for long. Together with this I feel drowsy also, sum times. CBC, ESR, create, URINE TEST, ANA TEST all are Normal.