help!!!!

baby had 2 month shots.... well he was very fussy for 4 days so i believe he was in pain. i have him tylenol every 4 hours through out the 4 days (proper dosage by doc).....

im reading that this could impact the effectiveness of the shots.... does that mean the shots were for nothing pretty much???

also stupid me didn’t know you had to shake the tylenol bottle so i never shook the bottle

please help

im stressed out to the point i want to cry