I suffered a concussion in early December and have had the "normal" slew of post-concussion symptoms.

What I want to know and can't seem to find anywhere is whether feeling completely exhausted, headachy etc is at all normal after participating in an activity the day prior that was overstimulating. For example, I took my child to a party and while I was pretty ok during it and even managed to converse with many (who all said "you look fine!") - I felt quite tapped out by the end. However, I felt a lot worse for two days afterward and I stayed in bed and barely emerged.

So is the "next day" thing a thing for PCS? Or is it psychosomatic?! Am I just weak and need to suck it up? This whole thing is so confusing. I see a specialist soon and will ask as well but I've found this forum so helpful I thought I would ask.

As background, I did lie low for a good period (two weeks) and I'm still off work (!!) and have shown some improvement - though things that defined me like managing stress easily, multitasking, problem solving, memory and my hearing (now have ringing in my ears -I once a musician).