I've read some of the other replies and your original entry.
Don't know about the anger before diagnosis, but can relate to the after diagnosis....it is part of the grieving process! Until I got my diagnosis ( 3 weeks after my bowel obstruction surgery) I was confused and angry. Then I was really angry when I got the diagnosis. Angry with the first ER unit, and angry at my PCP. Angry with everyone and everybody. I knew I needed to grieve....I needed to breakdown... And grieve my lost future. Grieve my projects I can't finish. Grieve for my family and lost graduations, concerts and recitals, and weddings and graduations and family events. Etc etc. I did not see the end of the tunnel. But once I broke down...I started to recover. I got myself a therapist and in the confines of her office I continue to grieve and adjust. It's a process. Learning to talk to others ( family) about my loss and grief. I hope knowing others have gone thru this is helpful. Hugs from joanne