My baby just got his 6 month checkup and vaccines (we got our insurance back this month). He was fine after, of course he cried for a bit afterwards. But at the end of the day he started to get fussy/crying and nothing would soothe him. So I gave him some Tylenol and that seemed to help. He woke up this morning at 4 am crying and crying so I fed him and he still wouldn’t settle. So I gave him more Tylenol and he’s been asleep since then. It’s now 10:23 am. Is it normal for him to be so sleepy?