Panic like attacks usually at night, rapid heart beat, dull aching pain in upper sternum, area above left and right breast bone, pain in upper shoulder area, temperature swings from hot to cold, shaking, anxiety. Normal ecgs, bloodwork, stress test, holter, MRI of head and chest xray.
Hithanks for using Chat Doctor Panic attack is a psychological disorder, and it happens due to underline stress. It usually happens due to conflict in unconscious mind. I have seen mostly patients have panic attack at night. That may be due to unconscious thought run at night during Chat Doctor.  In panic attack, all tests would come normal. For treatment u need an antidepressant and benzodiazepine. Consult a psychiatrist for further treatment. Thanks