Celiac disease is far more severe than what's now called "gluten intolerance". But maybe they're related.
I get that "Celiac disease results from genetic abnormal immune response to gluten."[0] I'm not sure what that means, in detail. Perhaps there's a particular allele of one of the immunoglobulin genes. But whatever it is, perhaps other alleles cause "gluten intolerance" of varying severity.
