Sorry to hear of your suffering.
My story was far more mild. Had a week of terrible migraines, that resulted in falling dow the stairs - only the last 4-5 - and injuring my back. Rehab took a while.
I had “contraindicated” added to my medical record, but I still have to remind them at every test I’ll never be doing that again.
I’m not suffering, just pissed off. It didn’t have to be that way. Your case had the potential to kill you. There it is. In many cases they don’t need to use contrast dye. They definitely didn’t need to in my case, which was a swollen lymph node on the side of my neck. One time should have been enough. It was clearly visibly being reduced.