Hello Senior Doctor, I have been experiencing persistent anxiety, excessive sweating, palpitations, and a resting pulse rate frequently above 100 bpm. My investigations show normal thyroid function (TSH 1.75 mIU/L, T3 and T4 within normal limits), normal hemoglobin (13.4 g/dL), and normal kidney function, thereby ruling out thyroid disorder, anemia, and chronic kidney disease as major causes. However, the following abnormalities were detected: • SGPT (ALT): 83.9 U/L (elevated) • GGT: 91.6 U/L (elevated) • Total Cholesterol: 206 mg/dL (elevated) • LDL Cholesterol: 139 mg/dL (elevated) • HDL Cholesterol: 34.9 mg/dL (low) • Triglycerides: 160 mg/dL (borderline elevated) • Fasting Blood Sugar: 101.5 mg/dL (borderline elevated) • MCHC: Low • RDW and RDW-SD: Elevated Despite these investigations, the cause of my persistent tachycardia remains not clear. Advocate profession. No alcohol or smoking