Following a blunt injury to the head, a 22-year-old female is confused and complains of a severe headache and nausea. on the basis of these signs and symptoms, you should be most concerned with the possibility of:

If someone shows these symptoms, they most likely have a concussion. Some more symptom that a concussion can have is: blackout, fatigue, poor balance, sleep disturbance or sleepiness, vomiting, irritability, mild-depression, ringing in the ears, and sensitivity to light.

A concussion and you should see the doctor 

1.)dr. natterson- horowitz came to realize that their isn't much of a difference between animals and humans. just like humans, animals can suffer from illnesses and diseases like breast cancer, self injury, anxiety, and many more. she also discovered how they even treated and performed surgical procedures on animals just as if the animal it self were human. the los angeles zoo called dr. natterson- horowitz because they knew that she was a doctor and that  she would be able to recognize what was wrong with the gorilla. they knew that humans and gorillas were similar, so instead of calling another veterinarian, they called a doctor.