How can you know for sure that something bad that you're feeling / having is caused by fin?

[Paroxysm]

I can't get shit done today, I'm feeling bad mental fog and I'm super tired for seemingly no reason at all despite getting a good night's sleep.

The thing is I'm not on any medication. But I'm starting fin soon.

People who had fin side effects from fin: How did you know for sure that the fin caused them?

 

[PurpleWave]

So you're not even on finasteride and are having these emotions but you are asking whether finasteride causes these emotions? What?

They are potentially a result of bad nutrients or a generally bad day - we all get them sometimes.

 

[Paroxysm]

So you're not even on finasteride and are having these emotions but you are asking whether finasteride causes these emotions? What?

They are potentially a result of bad nutrients or a generally bad day - we all get them sometimes.

My point was that if I felt that while being on fin, I'd probably be blaming the fin.

Hence the question - How does one differentiate from a negative thing being caused by fin as opposed to it just happening by itself.