12 week sleep regression?

I'm not sure what to call it. My child has never been a good sleeper and wakes up every 2 1/2 to 3hrs every night too feed.

All of a sudden he will take 5 minutes naps then be awake, he fights his sleep HARD and has had a few days where he woke up every. Single. Hour.

He would nurse for like 10 minutes then sleep until the next hr. Now he will sleep while nursing and when it's time to burp him he happens to be wide awake 🥲

Can the 4m sleep regression happen this early? Or is the 4m sleep regression even worse 😵‍💫