I went to see my doctor today and it turns out I've got a mild concussion. They gave me a CT scan and the results apparently weren't *too bad*. Basically, I caught an accidental elbow to the temple on Saturday and since then just about everything is causing sharp pains in the top / front of my head. (Just a quick "dont do that" type of pain just about any time I fall, jump, take a hard step, shake my head or do anything that constitutes impact to my upper body or head). I am not sure if this is the forum for this sort of thing since it isn't quite technique related but I was wondering if anyone could comment on how long I should "take it easy". I'm 25, 6'1 and I'm walking around at 170lbs. Between weights, cardio, bjj and boxing I am in the gym 6 days a week usually for at least 3 hours per day. (I train at lunch and again after work). Is there anything I *can* do for exercise while recovering? Does anyone have an idea roughly how long you are usually out of BJJ for when you've got a concussion?