The “hand” may have been a hallucination or your imagination. It’s possible that it was a response to the stress that you alluded to having experienced during your childhood. At this point in time, there may be no way to determine what it was.
I’m wondering if you ever reported this to your parents and or had the opportunity to be evaluated by a mental health professional. If so, it’s possible that you could review your mental health records. Those records might reveal a more complete description of that experience and the thinking of the mental health professionals who were treating you at that time.
You might also want to speak to your parents or your siblings about their memories of the event (assuming they were aware). It might help you to better understand what was happening at the time.
I’m sorry that I could not be of more assistance to you in answering your question. It may be advantageous to seek professional help, especially since you have faced many other problems as a child. Therapy is ideal for working through childhood issues in a safe, supportive environment. I hope you’re able to find the answers to your questions. Please take care.
Dr. Kristina Randle