Feels like i'm getting a light shock from my heart shooting to my head and whole body, ecg is fine from er, what can be causing this? feels like panic

Panic symptoms like: Heart attacks. (shortness of breath, heart palpitations, sweating, etc) with normal ecg. Learn2relax your breathing. Practice when u r not having a panic attack so that when it occurs u will be prepared2use the relaxed breathing2calm yourself. At the same time remind yourself, it will pass, u r not having a heart attack or other physical problem. Therapists can teach u other relaxation techniques.

Could be: High anxiety episodes can precipitate shallow breaths and hyperventilation. This causes a sensation of chest tightness and paresthesias in one's extremities (numbness, tingling). This certainly could account for your symptoms. Oftentimes this will occur with a "sense of dread" as well as the discomfort.