I get really sharp pains in chest and woke the other morning with a heavy weight feeling on my chest, then the other night had trouble breathing. I have had an ECG which showed nothing and been told by doctors my heart is strong. I do have high cholesterol which I take medication for. There is a family history of heart related issues back to my grandfather and his family, plus my younger brother has had a heart attack due to blocked arteries. My doctor has increased the losec he has prescribed for me. What is your opinion of the symptoms.