I've been having strange feelings of pressure in my chest, feeling like i'm sinking and going to faint for several weeks. is this a heart issue?

?palpitations: These symptoms suggest that you're experiencing palpitations or irregularities in the heart rhythm. Since the chest pressure occurs without exertion, it doesn't appear to be a coronary artery symptom. It is recommended that your Physician examine your heart and order an EKG as well. If this is inconclusive, you could wear a portable monitor for up to 2 weeks to check for cardiac rhythm disturbance