Before I go to sleep, I feel a tingling in my head and hear a ringing in my ears?

Well, I recently had a minor concussion. From that day on, every time I'm about to fall asleep on the right side of my head I get this tingling feeling and hear ringing. I then force myself to comeback and sit up, it scares me every time. If I don't fight it, I become half awake. My body feels as though someone is holding it down and not matter what, I can't fight it until my alarm goes off. I'm concerned now because last night, I was sleeping when my body began to jerk and rise on its own. I kept fighting it, but it kept pulling. I was mumbling; "no no no no no" over and over again. Finally I regained a bit of control fell to the bed. I opened my eyes, my heart beating like crazy. After I calmed down, I began to drift off again when it began again. I didn't get much sleep last night. I know this sounds crazy but..wtf is going on?