Okay, the reason that humans experience referred pain, such as in the left arm during an MI event, is due to human development. The nerve plexus for the heart originates in the left shoulder region during development and as the fetus grows and divisions of the nervous system become more complex and localized, some of the nerve endings which now lie somewhat distant to the heart can still be stimulated to pain occurring at the heart muscle. Thus, referred pain is encountered in a location that may be distant to the immediate anatomical location where the pain is actually originating.

In your particular case, however, a sense of weakness or a clubbed limb sensation is not uncommon with anxiety disorder. Anger can further agitate the nervous system, but the connection possibly being suggested here between anger and a subsequent negative affect on the heart and vascular system to the extent it is producing ischemic effects or referred cardiac discomfort would not be probable under the circumstances.

I see nothing here to suggest that you're at any risk.

Best regards and Good Health