I am asking this question because I also have a benign brain tumour and my neurologist says my brain fog is caused by that. I was actually expecting him to say it was from the hypothyroidism but he said it sounds more like temporal lobe epilepsy.
I would class my brain fog as I am distant from what is happening in the room, if someone is talking to me I cannot make sense of what they are saying and it always starts with me hearing the same voice saying the same words nothing strange or dramactic and I have rewound the television programs afterwards to see if those words were said and they were not. I do not lose consciousness nor blackout even temporarily but feel very confused for a while.
Does this sound like brain fog to any of you?
Thanks for your help. Good health to you all.