New T-cell dysregulation can unmask prior T-cell dysregulations - even unknown ones.
In a recent blog I wrote how T-cell dysregulations predispose to new T-cell dysregulations. The corollary is also true: new T-cell dysregulations (for example GDD) can unmask pre-existent ones (for example pre-existent Lyme disease, H pylori gastritis, or EB virus). We know from a number of viruses, that we never really get rid of them, but they are corralled, and can re-appear in the future- often at times of stress. This is classic for Herpes and for varicella (chicken pox