Sounds pretty bad. There are people on this forum that will help you out better than I, but from the sounds of it (and by making some similar mistakes myself), I would suggest taking some time off for quiet rest (no TV), stop trying to fight the concussion, and disregard what almost all "experts" think.

Even if you think your symptoms have dissipated, wait a few more weeks to introduce yourself to your old regime through small, baby steps.

There are many other helpful tips but these are just the ones that I wish I had known initially.