Tylenol PM

I know it's ok to take Tylenol PM because it's on my ok list. Last night I took 2 around 10 pm and woke up around 1:30am with bad hip pain. I went to take 2 more regular Tylenol
(Not PM) and accidentally took the PM. So I took 4 total in 3 1/2 hours!!! Should I be worried??! Baby has been awfully quiet this morning but I felt him a lot around 5 am