I know what you mean, I've had this same kind of dream before, protecting my mother and feeling inadequate. She blamed me for the crime I protected her against in a dream, won't go into too much detail about it but yeah same principle different actors. She would do this in real life to, quite often actually, didn't help that she was paranoid all the time to and always thought that people were trying to make her miserable. My sleep has been disturbed lately as well, been waking up frequently and not being able to get comfortable. Then in the morning I feel like **** and I have to really push myself to have any sort of motivation. Hope your day gets better, I found talking about my nightmares and the themes I remembered about them in Therapy to really help me resolve some of the issues floating around in my unconscious mind.