Do you ever type or write a word and it just looks wrong to you?

Today, I wrote the word girl and it just looked wrong. I wondered how I could misspell such a simple word and actually looked it up to make sure I was correct. I did have the correct spelling but it just does not appear to be right to my eyes even as I write this.
Girls, however, with an “s” looks fine.
Anyone else have this happen on occasion? If so, what is the word that confounds you?
Is there a name for this? What about a cause? Misfired neurons? Traffic congestion on the brain highway?