Hi Mark,
Thanks so much for your reply and all of the information. This morning when my son got up, he still had a slight headache, but was, as they say, "bright-eyed and bushy-tailed". He was happy, smiling and clear-headed. My younger son had a concussion from wrestling earlier this year and his symptoms were quite noticeable. He walked and talked very slowly, had trouble concentrating, had headaches and was very sleepy and fatigued. We saw a specialist with him and he was put on heavy restrictions as far as the use of his brain and was allowed no physical activity. My older son does get tired a lot from everything he does and will occasionally nap before bedtime, but it is unusual for him to sleep so heavily and for so long. Being a concerned mother, I don't want to jeopardize his health in any way. He is a high school senior with no plans to wrestle in college, but he will need his brain for the rest of his life. My husband will not let him skip wrestling without a medical reason, so we are going to have the trainer see him today and give him an impact test and compare it to his baseline. When my younger son had his concussion, he failed his impact test and did much worse than his baseline. Both of my sons play soccer and wrestle, so they've most likely had plenty of the sub-concussive incidents you described. I'm praying that our family will make the right decisions with whatever today brings. Thanks again for your kindness in answering me.