I don't want to worry anyone. It is a rare complication.

I think only a neurologist can really determine if someone has IICP. There should be other signs, other than just a headache behind the eye. But sometimes, that's not a symptom of someone having IICP. There are several symptoms on that webpage I linked above and sometimes people will show a few and sometimes they will show none. Bad IICP should show up on an MRI or CT scan. But sometimes it shows up on neither - this is when it's not bad, but it can increase from the point the image was taken.

Most people's brains can adjust themselves after a little swelling caused by the initial concussions and some people's can not.

When I had IICP, I could barely walk and needed the arm of anyone to be able to do so, I could hardly move, I could not speak very well, the pain I was in was so awful that even after being given dilaudid intravenously it did not go away. I misperceived space - like I would think a room was larger than it was and stuff like that. I was not able to maintain my personal hygiene and I was increasingly worse... I think it is a miracle that my neurologist was able to figure out that was what was going on with me and after I received the spinal tap to relieve it, I was finally able to start getting better. It's been a very slow process since that point. I couldn't walk or move for so long because of the pain that I was in that all of my muscles atrophied.

I've read that headaches behind the eye can be caused by other things, like tension headaches too.

I just thought after reading this woman's dire straits that it was worth mentioning... just in case...

I don't think it's necessary to ask about unless you're not getting better and in fact are getting much worse over the course of a few months. But I'm not a Dr....