I had a visitor this morning

My mom ... eh ok you say, so what. Well, my mother passed away over 5 years ago. This is so weird. I'd been having a hard time lately, really missing her and feeling down. This morning I got up at like 4am to go to the bathroom, I got back into bed and was having trouble falling asleep. I was on my side facing the door and my cell phone was on the bed in front of me, all of a sudden I thought I heard it ring. I picked it up, the light wasn't lit and it was ringing very faintly. I flipped it open and heard my mother's voice, she said something like 'it's time to go to sleep now, I'm ok'. I said 'oh my god! mom! I love you so much, and I miss you. She laughed like it was nothing, like she was surprised I was so excited, then said 'I love you too, and I'm ok'. Then the call ended, I can't remember if we said goodbye or what. I immediately wanted to call someone to tell them, I was crying and smiling and I couldn't figure out if I had just dreamt it or if it was real. The phone was in my hand, it felt real. For the first few minutes it never occurred to me that it might have been a dream, it was so real I heard her voice so clearly. I dream about her all the time, but never like this. I even went so far as to look at my last received call, but it didn't show anything. So I've been online half the day rather than working like I should be. This couldn't have been a dream. I can't describe how I feel. I mean I dream about her at least once a week, and I've had experiences before w/what I thought was her presence, but this feels so different. I heard in her own words, in her own little voice that she's still here and she's ok. I feel like I got her back again if only for a minute