I became very dizzy and my legs started cramping and tingling.I got to where I could not keep my balance while walking.As I was walking I would miss a step,as my left leg would catch,uncontrollably.This was all within one week of taking them.I called my doctor and I was told to stop the medicine and monitor my blood pressure x one week and call them with results.This is my first day without Lisinopril and I am still wabbling and some dizzy,but better than yesterday!