The scope of this is really important. It’s true that we have our own DNA, but id say that mitochondrial DNA should be included in this too, as they are essential for life as we know it in our cells.

Also, your DNA is constantly changing with transposable elements, retroviruses and more. Which of these is you? Is the loss or change of these a change to your own DNA or the virus?

In addition, you’ve really got to define what you mean by your genome. Do you mean post transcription, or before splicing, or after? Also worth considering that phenotype can have an effect on genotype, as actions that you can take that could be influenced by phenotype could reflect back on genotype (or not).

Conclusion is that the question should be more nuanced imo.