I was once told one of the chordae tendineae by the mitral valve is loose & might be the reason for my occasional chest pain. anything to worry about?

Sounds like you have: been diagnosed with mitral valve prolapse which can cause occasional chest pain. It is a relatively rare occurrence but occasionally this progresses to valvular leakage or even rupture of the tendineae requiring replacement of the valve. You should be seen and evaluated by a health care professional on a yearly basis with periodic repeat echocardiography.

Mitral valve: On a scale of 1 to 10, this is probably this is a 3. Obviously you had an echo done. The thing I would pay attention to is how much regurgitation is occurring. If its "moderate" I would repeat the echo at least every 2 years. Down the road, hopefully many years, you may need a valve replacement. The other thing is your heart rhythm and any occurrences of unprovoked tachycardias.

Ok : OK I'll lose Chordai on your mitral valve this type of thing probably wouldn't cause much in the way of symptoms until something else happens however you really need to talk to your cardiologist whoever order the echo cardio gram that's the person can