I doubt you need psychiatric counseling. You sustained a concussion as a result of a traumatic accident. You are recovering and your mind is trying to process / reconcile the events. You report a history of lucid dreams, therefore this is not a new development. Further, the fact that you keep a journal indicates that you can differentiate between your dreams and actual events. As I'm sure your research as revealed, time passes in dreams at a much different rate. It is among the most distorted elements within the dream state. Typically, dream last between 5 and 50 minutes, although it often feels like much longer. You clearly have an active mind. Your resting state may be the only opportunity you afford your mind the time to clearly consider and process the events of the accident. I suspect you are missing an accounting of a portion of time after the accident (Blackout). Your mind is simply trying to fill in that missing gap. Each attempted solution to fill-in that time results in an alternative result (Claw hand, eyes staring at you, being attacked...etc). In short, your body experienced some trauma. Images of being attacked or threatened clearly correlates to your mind's attempts to rationalize the harm to your body. Your accident was relatively recent. There's no cause for alarm. In fact, your anxiety may well be contributing to your current condition. Give it time, you will be fine :))