I'm burning up. I can't sleep. What's going on?

Fever and sleeplessness may be caused by excessive nerve excitement. At this time, adrenaline secretion in the body increases, which will dilate blood vessels, resulting in fever and sleeplessness. Secondly, fever and sleeplessness may also be caused by fever. Fever is mostly caused by pathogen infection. After infection, cerebral vascular dilation and body excitement will occur, thus affecting sleep quality. The patient's fever and sleeplessness may also be caused by anemia, hyperthyroidism and other diseases. He can be admitted to hospital for blood routine examination, thyroid function five items, C-reactive protein and other examinations to diagnose.