I experienced extreme pains in the stomach for more than half a year, which would start abruptly, last for about 7 hours, and then disappear; with a rate of once in a month. The first such pain appeared before going to an assembly (that I didn't attend eventually). The problem finally disappeared with treatment.
Another one was an autoimmune skin condition that I developed at the zenith of my cognitive dissonance period. That condition fortunately faded away when I transitioned from cognitive dissonance to acceptance of the fact that I wasn't a jw anymore. It still is lies me though, in a much milder form, and rises only when I am in a lot of stress.