Vincent,

Please stop trying to measure things like your semantic memory. It will only cause anxiety. There are many things besides a concussion that can influence memory functions, especially quality of sleep. Poor or disrupted sleep can make somebody who has never suffered a head injury perform like they are half brain dead.

If you are so easily impacted by a simple concussion, many of us would suggest you reconsider sparring at all. You have an education you need to complete.