I can say that you might want to just give yourself some time before going full on into video games. Chances are you just need to let your brain heal itself a little before getting too much into it.

I have had PCS for quite awhile now but I still can play video games, as long as I keep it in moderation. If I play all day, my brain isn't too thrilled. I think that might be true for even a healthy brain. lol. You might want to just figure out how much time you can handle and ease in from there.