The High Priestess reversed indicates that in the past the subject has not paid enough attention to his health, dedicating more time to other aspects of life. Subject overlooked body signals or ignored important medical advice.
Reversed King of Pentacles tells us that in the present the subject may be vulnerable to serious illnesses due to an unhealthy lifestyle or lack of attention to one's health. We are talking about bad habits such as eating poorly, not exercising regularly or neglecting the signals produced by your body.
King of Cups indicates that the future is promising as regards the subject's health conditions. This means that the person must commit to adopting a healthier lifestyle to prevent any health problems. The card also symbolizes a positive attitude towards life and health, encourages you to take care of yourself and be responsible for your health.
Considering the three tarot cards, we can say that the probability of suffering from a short-term serious illness depends on the habits of the subject in the past and present. If you have taken good care of your health and if you maintain a healthy lifestyle, your risk will be minimized. However, if you have neglected medical care in the past and/or led an unhealthy lifestyle, immediate steps should be taken to reduce your risk.