As aortic valve stenosis gets worse, you may have symptoms such as: 1  Chest pain or pressure (angina). 2  You may have a heavy, tight feeling in your chest. 3  Feeling dizzy or faint. 4  Feeling tired and being short of breath. 5  A feeling that your heart is pounding, racing, or beating unevenly (palpitations).s aortic valve stenosis gets worse, you may have symptoms such as: 1  Chest pain or pressure (angina). 2  Feeling dizzy or faint. 3  Feeling tired and being short of breath. 4  A feeling that your heart is pounding, racing, or beating unevenly (palpitations).
For the similarly named bird, see Killdeer. For the similarly named city, see Killdeer, North Dakota. Kildeer is an affluent village in Lake County, Illinois, United States. It is a suburb of Chicago. The population was 3,968 at the 2010 census.
Kane County, Illinois. Kane County is a county in the U.S. state of Illinois. According to the 2010 census, it has a population of 515,269, making it the fifth-most populous county in Illinois. Its county seat is Geneva, and its largest city is Aurora.