Hello Sir/Ma'am, On left arm, shoulder and in full hand, it feels heavy and pain. Specially during night/sleep, it feels stressed all over left hand. My age is 38 and as per recent report - Triglycerides - 193 mg/dl HDL - 43.7 mg/dl LDL - 107 mg/dl Cholesterol Total - 158.6 mg/dl Vit D - 21.31 ng/ml  (Taking medicine for Vit D now). Thyroid - TSH 6.78    (T3,T4 are in range) (Taking medicine) What is the cause and what should be done to reverse this left hand side/ back heavyness and pain. Thanks.