Is There a Ghost in My Life?

My father's mother died when i was 12 or so. She had taken too many caffene pills and suffered a heart attack. I would talk to her every day, just telling about my day and asking about hers. On really bad days, i would always leave my room after doing such with this extreme questione whether she was even there listening to me. And at the time, i was ok with pretending that she was there for me. Now 18, i still think about this coincidence every now and then, and i truly hope that whatever was watching me sleep is long gone.