Doctor! every morning when i wake up from bed, after 5 minutes i start feeling heavy pressure in my left chest area. it doesnt hurt but an uncomfortable feeling. heart rate remains normal. sometime it feels that this all starts from upper stomatch but i am not sure as the feeling remains under left nipple and surroundings. after breakfast sometime it resolves on its own and sometimes goes for long time. this condition is almost constant for last week or two. i am afraid of angina or other heart issue so attaching my recent ECG..,.,.please guide!