Feeling numb after diagnosis of Endometrial Cancer

Hi, I am really nervous posting here and talking about myself but here goes. I am 63 and have two wonderful grown up children and three awesome grandchildren. I am disabled but worked full time until last year when I had to retire early due to health issues but I was coming to terms with that. My work meant the world to me and was a huge part of who I am so was hard to adjust. On Monday this week I was told that I have endometrial cancer (tumor on the womb) and a treatment plan is being put in place. My big issue is I am not sure how I feel or if I feel anything at all. Is this normal? Do others feel this way? I am so confused.