Concerned about Holter and Echo Results

I had an echo and a 24 hr holter due to palpitations. The holter results state:
398 Total Ventricular Ectopics, 351 isolated beats, 16 couplets, 4 runs,
79 Supraventricular ectopics
No tachycardia, no bradycardia
The echo showed mild aortic insuf.,redundant mitral valve,eccentric mild mitral regurg.,
My primary didnt seem concerned and put me on a beta blocker (atenolol). I am very concerned and decided to make an appt with a cardiologist but it will take 3 weeks to see him. Are my worries valid based upon these results?

[itdood]

If your only symptom is palps I personally wouldn't pursue it further.

I pursued it for myself with about the same report but I have significant family history of MIs in my family at about my current age.  I went as far as nuclear stress tests and a cardiac MRI to rule out as much as I could.