3 month old screaming in sleep

Hello! My boy just turned 3 months old. he has been a quite good sleeper and sleeps 10pm - 3am, night feed once, then sleeps until 7am since 2.5 months. But recently he suddenly started screaming in his sleep between 4-7am (few times every hour) and has been waking up early. Inconsolable when I try to soothe from cotside and only stops after a while even when I hold him. Normal? 😭😭 do I just leave him until he is "done"?