So my LO just turned 4 months on the 28th.

When he was like 3 months old & 1 week, he started doing waking up every 2-3 hours at night and only taking 30 minute naps. Well that lasted like 2 &1/2 weeks and he’s been better since then. Taking longer naps and doing better at night. So I was assuming maybe he went through his 4 month sleep regression a little early..

well last night he did terrible. Up literally every hour of the night just so fussy. I’m hoping that he already went through his sleep regression and maybe we just had a bad night last night..

he also got his shots on Monday and I gave him Tylenol for it on Monday but did give him any yesterday.

So I’m thinking maybe it’s because of that?

Has anyone else been in this boat or have any advice?