恭请坛里的医生帮我看看我心脏病严重吗？这里是我的holter的检查结果

我因为总是感觉心慌头晕，有时候还会左肩痛，所以去看了医生，然后就被要求带24小时的holter检查心脏，现在结果出来了，我的家庭医生建议我去看心脏病专科。我实在看不懂这个专业检查结果，我不知道自己是否得了心脏病。恭请坛里的医生同学能帮我看看检查结果，万分感谢！
“Narrative:
Sinus rhythm. Beats were in bradycardia (22%) and tachycardia (4%).
    Heart rates range from 44-132bpm. Mean HR: 71bpm.
    Max R-R: 1.44 seconds.

    Frequent PACs (2483) and one PAC couplet.

    Two PVCs.

    The patient reported "felt dizzy deep breath) and "pain in the left shoulder" (1; lie on bed). Both symptoms correlated with NSR (68-78 bpm) and PACs.

    CH2=V1; Ch3=V3; CH1=V5
    KB"

越是看不懂越害怕，我的心脏病很严重吗？