Hi, I have been prescribed ATENOLOL 25 MG. I do not have high blood pressure. I went to a Cartio. Dr. because I heat has been beating fast. I m told it is the electrical part of my heat, common, nothing to worry about. I have quit cafine, alchol, & chocolate, but it still beat fast. I have not been taking the pill because I did not get a good answer from the Dr. I do not have high blood pressure why am I taking it? I am afraid my blood pressure will be to low. I guess I should start taking it. Please advise. Thanks