My friend recently had a concussion (last Thursday night) for which she did not receive any kind of medical treatment. She has been experiencing symptoms since.

Today her mother forced her to go to her scheduled dental surgery to have her wisdom teeth removed (she would not call in to cancel the surgery). Her surgeon thought that she was just lying to try to get out of going through with the operation, and he put her under anesthetic for the operation.

She's out now and was texting me, describing some usual post-anesthesia effects, but now she's stopped responding and I'm getting worried. Should I be? What is the best thing to do now?