Will you always know if you have a concussion after hitting your head?

Answer 1

You wouldn't necessarily "know" without being examined, but you can easily see if you have the classic symptoms by Googling for "concussion symptoms" and making an appointment with a doctor.
Phil First of all, I have no medical training. That being said, from what I understand, NO, you won't always know if you have a concussion. If you think you might have a concussion, you should GO TO A DOCTOR RIGHT AWAY! Depending on what happened to you, you might, for instance, have bleeding inside your skull that could be really dangerous and could even kill you. And you might not know it at all. A doctor may perform simple tests to check that your eyes are working normally, that you can move all your muscles and feel things normally, and that you're thinking normally. You may also get more sophisticated tests to look at your brain inside your skull to check for bleeding or swelling. If you think there's a possibility that you have a concussion, I believe you should go to a doctor. You might feel signs of bad things that could be happening - or you might not. You should especially see a doctor if you have a headache. Get things checked out before it's too late.