Concussions are weird little things, they can be so insignificant that the next day you're completely fine, or you could be dizzy for weeks. I've had both. Once I fell down a flight of concrete stairs, was in a state where I couldn't see for almost an hour and didn't stop feeling weird until almost two weeks later, and another time I was in a pretty grousome head clash leaving me with an inch wide, 3 inches long, gash in my head (somehow the other guy ended up even worse though haha) - but I was perfectly fine the next day. I'd say both were equally painful as fuck, they both probably had the same level of force, and they both hit the same part of my head, but in one I was fine in a day and in the other I wasn't until a while later. The recovery time for these things is completely random, I don't know how long it will be until Bryan's fine, you don't know how long it will be until he's fine, and he doesn't know how long until he's fine. Point is that until he is fine he shouldn't be wrestling, he may even be completely fine right now but nobody knows except for him and the doctor how he is.