REAL Physical Health Problems Said to be "Limiting Beliefs"

I need to tell SOMEONE about this and ask about this and I didn't know where else to other than here.

As some of you know, my (now ex) fiancé and I did the LGAT together. Part of the LGAT was convincing people that any and all health problems come from limiting beliefs. That we create them in our head and are "choosing" to have them in order to be "victimy."

At the time of the training I had a medical condition called vaginismus that makes it very painful to have sex. That is a legitimate medical condition (although there are psychological components to it). After the training almost every day my ex told me over and over that my condition was just a limiting belief I was making up in my head and would just NOT believe that this was real or physiological in any way.

I am also autistic and of course he said that's a limiting belief/a story I'm telling myself as well. But the former part felt especially coercive because I felt that he was trying to get me to do something that would be super painful for me for a LEGITIMATE, non "limiting belief" reason.

I was wondering if any of you have experienced anything similar? If this is common in LGATs?

Sorry if this post is TMI.