When you lose a limb, you still have a perception of it being there. Your brain interprets the impulses from nerves unconnected to anything as if they are still receiving signals and feedback from a member that isn't there anymore. It can be like that with people sometimes, especially if they were very present in your life. In particular, sounds that you would have once assumed to be a loved one puttering around the house are still interpreted that way. The sounds you heard weren't always that person then, and now your assumptions haven't yet adjusted to the fact of them being gone.
It's perfectly normal, and an indication of how much the person meant to you and how important they were in your life.
It's perfectly normal, and an indication of how much the person meant to you and how important they were in your life.
I'm not anti-Christian. I'm anti-stupid.