Please read & help

Okay so my obgyn has put me on Metronidazole 2x a day 500mg I am having very serious side effects,dizzy,weak,heart palpitations,vomiting and diarrhea also very itchy and panic attacks has anyone had this and if so please please tell me how long it took to get rid of these side effects and how to get rid of them!! Side note I’ve stopped taking it I’ve only gotten to 3rd does when I realized something was wrong