Sorry to hear about your set backs. I can imgaine having to raise your son with PCS can be a massive challenge and each day must feel like hurdle. From a spiritual standpoint sometimes I wonder if we were given this challenge to overcome in order to become stronger souls.
I'm at a year and 1 month. Recently I too have been getting worse. It seems like a platued in my recovery...remained constant for a few months and am now regressing. Very frustrating.
I hope you get through today and tomorrow brings some joy into your life.