See also anxiety, stress, and tension . Extreme agitation can lead to confusion , hyperactivity , and outright hostility.
Agitation can come on suddenly or gradually.
It can last for just a few minutes or for weeks and even months. External stimuli , pain, stress , and fever all increase agitation. There may be other causes of agitation. This list is not all inclusive, and the causes are not presented in order of likelihood. The causes of this symptom can include unlikely diseases and medications.