Labyrinthitis is irritation and swelling of the inner ear. It can cause vertigo and hearing loss.| medlineplus.gov
Palpitations are feelings or sensations that your heart is pounding or racing. They can be felt in your chest, throat, or neck.| medlineplus.gov
Iron is a mineral found in every cell of the body. Iron is considered an essential mineral because it is needed to make hemoglobin, a part of blood cells. The body cannot make it, so it must be taken in| medlineplus.gov