HI I have just been to A&E with breathing difficulties- due to head cold - they took a x-ray of my chest and found a shadow under my heart - I'm sick with worry - said to go back to see my doctor in 6 weeks to arrange another scan - no idea what could be found - has anyone had anything like this before? - oh and I am a disgrace smoker now looking at e cigs to help quit so freighted aged 52 female.