Im really worried about my heart....!?

I have been having weird feelings lately and find my self extremely anxious as well as getting bad stomach aches and headaches along with general aches and pains. My heart has been racing on and off then I have bad heartburn. This is all normal but recently I have noticed my right pinkie going numb and me feeling really short of breathe, almost weak. Im starting to get really worried about my heart health I have been worried about this since I got panic attacks but then asked my doctor and he said It's just anxity I received an EKG and everything was normal, but should I be worried what should I do??