My Mom passed away yesterday

It was completely unexpected and I am stunned that this has happened. She was sick a couple days before thanksgiving with a fever and cough and her fingers and toes were getting numb. I told her she needed to go to the doctor but she said she'd be fine. Then yesterday she called at 11:15 and sounded terrible and could barely talk and was wheezing she said she would go to the emergency room but wanted to wait a couple hours so she could rest. She said she would call me at 3:30. After me freaking out and getting upset she asked me to just please wait -she wanted to be able to walk into the ER. She didn't call me at 330 so I started calling her her phone was off . I had her neighbor go over and bang on the door and nothing. He got a key from the manager of the apartments and we went in together at 600 and she was very much gone. The EMT said she had been gone since about 12:30. We are fairly certain it was pneumonia but they are doing an autopsy to confirm.