your experience from your transition diet could be easily explained by the body's adjustment from an acid body-medium to an alkaline one, and the accelerated elimination of toxins.
It is generally agreed by many that the body needs to be slightly more alkaline than acid, and that an acid-forming diet (the Standard American Diet) is the precursor to many diseases and states of ill-health.
If you had persevered over time with a mainly raw-food diet (alkaline-forming) consisting of Vegetables, fruits, nuts, seeds, pulses and legumes, then your present state of health would be all the better for doing so.