Cancer is my guess.
My gal pal Yi was in a small fender bender years ago. She bopped her head on the side window and told me that it hurt. I made her go to hospital. They found bone cancer. A type of cancer the Cleveland Clinic had never seen! They operated and removed a large piece of her skull, replacing ut with a 3” curcular piece of plastic. She’s okay, but I worry constantly! The Clinic had never seen this type of cancer? The docs were great for her, and for me! They knew I loved her and was frantic. They called me every 15/20 minutes to keep me informed. Cleveland Clinic, a great place!