has anyone ever had an ECG

that procedure to test your heart? i'm starting new antipsychotic tablet soon and i must undergo an ECG and bloodtests before i start the new medication and i'm nervous about having an ECG, because i thought what if they find something wrong??

i'm fearful of anything medical and clinical, so these clinical procedures will put the fear up me a little.......i have to try the new medication because i have to show 'willing'.

any thoughts at all?