My 23 days old baby was sleeping comfortably for two - three hours on a stretch after a full feed, but he has become very fussy and a disturbed sleeper since three days, please guide

A. That’s why normal maybe it is due to that your child may be a light sleeper or something but usually sleep pattern changes from time to time so with what you are mentioning currently in your question is a very normal thing if you’re facing more of an issue check with your doctor