Hi, I suffer from anxiety the whole day and panic attacks. I did resting ecg, x-ray chest and the doctor says it's good and he gave me escitalopram�m 10 mg to get better in the next weeks (5 days ago). I still suffer from fast or ?pounding? heartbeat, shortness of breath, chest pain, fatigue and my heart rate stays between 50-100 the most time and i'm afraid from heart attack. I'm 21 years old, no smoker, 70 kg 186 cm and I did 2-3 time per week sport. I take oxazepam 10 mg one time before sleep.