Mint,
Yes, 3 steps forward 2 back! This was definitely us. My son would relapse alot, depending on stimuli. He is continuing to improve. He will be starting his Junior year in high school this September, 7 months after his concussion last February and we will have to see how it goes. He has a pretty intense class load and I hope it will not stress him into his symptoms again. PCS is so hard, and impossible to predict what is too much and what is just enough. Hang in there and keep on hoping for the best. You are not alone.