One of the most common causes of an epidermal hematoma is a blow to the head, particularly in the area around the temple. This is a serious bleeding under the skin, between the skull and the brain. It is possible to die from such an injury. Headache and vomiting are two common symptoms. at the very least, you should have your doctor take a look. He may order a Cat scan to verify the internal condition. If it happens to be a serious injury, you should not wait. You might not stick around to see your son grow to an adult.

In all the time that I spent as a paramedic I have never heard of diarrhea as a symptom of a head injury, aversion to bright light and sounds, yes, nausea and vomiting, yes, dizziness and insomnia, yes but never diarrhea. I'm leaning toward the advent of flu season and this one incident where the injury and flu symptoms appear simultaneously. See you doctor for a flu shot, take some Bepto and get some rest with the three year old Hulk Hogan wannabe. You'll be fine.

I have had a headache going ton 3 days now, It's not sever but it is an uncomfortable feeling.. should I go to the doctor or is this expected?

Those of us who are responding are not medical doctors. We are simply people who try our best to give an answer we feel might be helpful to whatever questions are being posed in this format. Both answers above reflected different opinions, but they are only nonprofessional opinions.

I believe both answers already suggested that you should visit your doctor for a more accurate answer. Since your headache is ongoing, I would think you should make an appointment in the morning so you can be checked.