Hey man I feel for you. I have had a concussion since my junior year. I am now graduated, but I still feel the effects of PCS. I know how you feel. Senior year sucked for me. I didn't have a normal senior year. Being in the classroom setting definitely made me feel crummy. However, I am getting better. Even though it has felt like a long time, I know that I will be healed. I am not saying that your concussion will last as long as mine. I am just saying that I support you because I know how bad it must feel to be in school. I hope things will get better for you soon.