Experienced mamas, my daughter has started teething at 2 months old, while I know she won’t get any teeth until about 4-5 months old. She’s been very fussy for the last 4ish days.

My question is: how long will the fussiness last until she finally breaks a tooth in a few months? Like will this only last a week or so, and then her go back to normal until it starts bothering her again?? Not sure how the first couple months of teething works until she gets her first tooth