Kyo and Jitsu can approximately be translated with «energetically empty» and «energetically full». They only exist together, there is no Kyo without Jitsu and vice versa. Usually, Jitsu is the one drawing energy from Kyo. Therefore Jitsu has too much energy while Kyo has too little. With Shiatsu, we try to connect the two to recreate the balance between them.
Kyo is usually connected to chronic diseases. It changes rather slowly. Some examples of symptoms related to Kyo are : Fatigue, exhaustion, dull chronic pain, chronic eczema etc.
Jitsu often has rather acute symptoms, it changes fast and often. Some examples of symptomes related to Jitsu are : Tense muscules, acute headaches, fast-spreading rashes, etc.