Why is it that the heavenly doctor position of the house is in the same direction as the minor ailments of Feng Shui?

This is normal. Tianyi is one of the four auspicious positions of the eight houses. It is the financial position. It is fixed according to the direction of the house. Generally, the overall layout of the house is determined by the good and bad positions of the eight houses.

The flying stars change every year and only affect one year. In addition, there are the fortune chart, the mountain chart, the first chart, plus the changes of the first and fourth flying stars in the fleeting year, which require comprehensive analysis and judgment.

Feng Shui is inherently changing, not static. It's complicated, and it can't be judged by one sentence.

Hope it helps.