Heart attack fear always. Save me

Read fully and help me. During my work from home scenario, i started feel fear about corona virus then it's turned into heart attack fear. One day suddenly i got heart palpitation with mild dizziness but i could walk that time. I rushed to hospital by walking and taken ecg it's normal. After that incident i feeling very fear and nervous that i have heart attack anytime. Til i experienced 7-8 times heart palpitation and taken 6 ecg, 2 Echo, 2 tmt, 2 chext xray, thyroid and sugar test, all test time and again normal. Because of heart attack fear i can't do my daily activities.. I fear to walk I fear to lift weight I fear to do exercise I fear to climb I fear to travel I fear if get sweating I fear if get any pain left shoulder and chest Despite many reports were normal and many doctors said my heart is normal, i can't believe them and still living with heart attack fear and anytime i gonna die.. Please save me 😭😭😭😭