Ken Lassesen's model

Ken Lassesen is a mathematician and software engineer who first became ill with Chronic fatigue syndrome in _____. He has used a variety of gut micro biome-altering treatments to recover on three separate occasions. He believes the symptoms of CFS are caused by gut dysbiosis.

Theory
Lassesen also emphasizes hypercoagulation as a major factor in CFS, which in his case is at least in part genetic.