Why have I been mixing up words so much lately?

I just read an email subject as “Four Seasons” instead of “Four Reasons”
I see pictures online or things in person, and lately, I’ve had to read things 2 or 3 times because I mix up a word and none of it makes sense. (Like the Seasons vs. Reasons thing)
Am I just reading too fast for my brain to really process? I’m not trying to imply I’m dyslexic, I know I don’t have it. I’ve never had this issue until recently.