I am 27 years old. I am having chest pain at left side with pain in left hand and shoulder, neck. Also heavy head, head sensation, and headache with shaking in whole body with mild breathing problem from last 2 months. Also feeling heart beat (dhak- dhak) in whole body specially in stomach. Also from last 3 days feeling left chest vibration & nausea with tiredness all time. Dr. Did ecg twice, blood test n chest x Ray all are normal. Still have pain even now. Could you please assist me?