Yes, sometimes I have moments when I realize just how strange a word is spelled, even though I've been spelling it correctly for years, so it's 更多 of an epiphany than a "wait I've been spelling something wrong this whole time?" kind of deal (I actually 爱情 spelling so I'm generally very good at it lol. Spelling is love, spelling is life). I've had similar incidents with names, too. Not for the spelling but for the realization that names are quite weird. Like 你 just attach a word to a person 或者 other animal and through constant use 你 come to associate that person 或者 animal with the specific word, but words are man-made and technically every name ever invented is strange, even the ones you're familiar with. Just.... names. I really think this feeling is connected with the 随意 spelling. 你 become so accustomed to spelling words that 你 forget how strange the invention of letters and consequently the sequence of letters even is until 你 realize, "Wait, sign is spelled s-i-g-n. And long is spelled l-o-n-g... and hair is spelled h-a-i-r... Huh. Words."
I'm pretty sure I'm not even explaining myself properly so I'll stop right here.
I have had those times when my brain goes 'welp, now I`ll turn off for a sec if u don`t mind' and then I can stare at a perfectly written word and wonder if it really was spelled like that. To enhance how dumb it can get, I once stared at 'you', thinking that maybe it is spelled 'yu'. 😒