Fussy 7 month old going crazy

A

My baby just turned seven months two days ago and he has been uncontrollably fussy for about three days now. It’s not like him at all because he is normally a very happy baby. I don’t think teething because I don’t see or feel anything??? That’s all google has for me. But he has been showing teething signs for the past two months at this point with no teeth, so I’m ready to pull my hair out! Any ideas!? Thanks 💙