The wife of Chuck Norris had a problem with MRI contrast but no one really believed her problems were related to the contrast.
If any of her family happen upon this thread because it comes up in the search engine I will say to you that you should do a whole genome test. See if you have a problem in the MDR1 gene. Gadolinium is predicted to be a P-glycoprotein substrate by an AI program that researchers use. This gene is the one related to why certain dogs have problems with Ivermectin. The gene can cause problems processing drugs.
Hope that information helps someone.
By the way, your factual knowledge is far greater than mine.