Curiously I think that also depends at least in my anecdata case.
In a work/technical context I am definitely thinking and reasoning in English.
At home if I am discussing or planning something my inner voice is definitely in my mother tongue.
What is interesting is that irrespective of context if I m doing basic arithmetics or simplifying an equation my inner monologue is _always_ in my mother tongue.
Another one is levels of pain. If I have some misfortune or accident I might swear in English. But if I _really_ hurt myself there is deluge of swear words in my mother tongue.
In a work/technical context I am definitely thinking and reasoning in English.
At home if I am discussing or planning something my inner voice is definitely in my mother tongue.
What is interesting is that irrespective of context if I m doing basic arithmetics or simplifying an equation my inner monologue is _always_ in my mother tongue.
Another one is levels of pain. If I have some misfortune or accident I might swear in English. But if I _really_ hurt myself there is deluge of swear words in my mother tongue.