Goodbye mom

Today my mother died. I woke up this morning to an email stating her time of death as some time around 8pm South African time. She had collapsed from lack of oxygen in her blood, and was admitted to ICU. It took about 2 hours for the shock to become real for me. By the time I arrived at work, I was a complete wreck. I suppose that this is understandable, although I had not imagined that it would affect me this badly. The grief came in waves. I'd feel ok for a time and then regress into a terrible state. My earlier feeling have given way to a kind of numbness now.