for the last few days my heart has been skipping a beat every 20-40 beats. it causes a strange sensation in my chest. the other night they were much closer together my ears started ringing and my arm hurt i thought i would pass out. today i feel very week and out of my head. i have been diagnosed with techacardia, but it doesn't seem to be acting up. someone told me it could be anxiety attacks. can panic/anxiety attacks make your heart skip a beat like this?