>> I subconsciously think twice before using the toilet (maybe if I hold it for a while I can go one less time?)

I think what you are saying that you don't hold it, but that you are thinking on those lines.

However, please don't do that, as it is not good for health.

I don't know how well [1] explains it, but at least makes one aware.

[1] https://www.geisinger.org/health-and-wellness/wellness-artic...

edit: added context