As it turns out I got a mild concussion friday night at hockey. It rather surprised me given that I wear good masks (had an Itech 9600 on, which is top of the line) that all fit well. I’m a goalie in case that wasn’t obvious. 
So I was curious if according to our neurological experts here is it possible sometimes that no matter how good your mask is, is it possible sometimes to get hit just the right way to cause a concussion?
One other thing I was thinking is that the 9600 CSA cage has quite a bit thicker bars than a 960 (nearly the same model, just has bit thinner cage bars, different vent holes, little wider fit) and I was hit right in front or beside of my right eye, it hurt too.
Is it possible that if your cage doesn’t bend easily enough that it transfers to much force to your head? Physics majors help me out here.
The reason I ask this is that I’ve been hit with harder shots in the cage with the 960 and bent the cage all to hell with nary a problem. It would seems plausible to me with my rudimentary understanding (at best) of physics that if the cage doesn’t bend and absorb the blow to some degree that it would allow all the force of the shot to travel to the head?
I have been to see a doctor too, I went saturday morning after the headache and nausea were still there when I woke up. She said not to play hockey again until the headache and nausea were gone but figured it was quite mild since I had all my short term memory, motor skills were fine, etc.