If you’re really fluent.
I lived in Germany for a few years after graduating college with several years of French study under my belt, and there was a point as I was learning German where I would genuinely struggle remembering the right word for things. I’d reach for the German word, and my brain would give me the French word.
Worse was returning to the US. There would be times when I’d be talking and want to say a common word, like “trash can” and I could not for the life of me remember how to say it in English. All I’d get was the German word. I mean, I spent the first 18 years of my life being mono-lingual, and three years in a foreign country and I started forgetting my native tongue.
But the strangest is that now – after 20 years back in the US, when I can practically no longer speak German – it still sometimes happens to me that I’ll reach for a word and get the German one, and can’t remember the English word.
By that logic - that fiction is a drug because consuming it releases endorphins or dopamine or whatever - then anything that gives pleasure is a drug.
If you enjoy it, then
Oh no! They were right! TV is a drug!! Rock and roll is a drug! Sex - drug! Not being miserable: definitely a drug. Unless you’re a masochist, in which case: being miserable is a drug!