I have been suffering from illness since June. Is it a feng shui problem or a villain?

There are many reasons for this, including the relationship between self-happiness and reward, the relationship between yin and yang, and it may also be the reason for committing villains. Only a professional feng shui master can prescribe the right medicine after on-site demonstration.

As yourself, you can check whether there are trees around the ancestral grave, or whether they are stuck by roots. You can also check whether there are pathogenic factors or obstruction in the corresponding position of Yangzhai according to the pain site.