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.
DuPage County is a county in the U.S. state of Illinois, and one of the collar counties of the Chicago metropolitan area. As of the 2010 census, the population was 916,924, making it Illinois' second-most populous county. Its county seat is Wheaton. With a population nearing one million, DuPage County has become mostly developed and suburbanized, although some pockets of farmland remain in the county's western and northern parts. The county has a vast socioeconomic profile; residents of Hinsdale