Hi, for the past 3 days my feet and legs...it feels as though I am standing on a motor, they feel as though they are vibrating. I am 69 years old and female. I do sit a lot and try to walk often as I have bad knees, but it is becoming aggravating to me and I am getting worried . I am on Atenolol, Furosemide, Potassium and Losartan. Thank you, Laverne Washington