Acute osteomyelitis refers to an infection which develops and peaks over a relatively short period of time. In children, acute osteomyelitis usually presents itself as pain in the affected bone, tenderness to pressure over the infected area, fever and chills.
Dizziness caused by psychiatric conditions. 1  Depression, anxiety, or panic disorder. 2  Hyperventilation is from breathing too fast or too deeply, usually from anxiety or metabolic disorders. 3  Somatization is the conversion of a mental illness, such as anxiety or depression, into physical symptoms.
Lightheadedness occurs when your brain does not get enough blood. 1  You have a sudden drop in blood pressure. 2  Your body does not have enough water (is dehydrated) because of vomiting, diarrhea, fever, and other conditions.  You get up too quickly after sitting or lying down (this is more common in older people).