I have this itchy feeling in my cheast/ heart region, done ecg and eco all result were normal

I have this itchy feeling in my chest/ heart region for the past one month now , done ecg and eco all result were normal ,and I have been having mild sore throat, what do you think can be the problem and how can I solve this issue

You e can have reaction to MSG in food. It causes chest pain or itch feeling I had that until I learned about it. It is in MOST foods that are processed or eating out.