DS got his 2 month shots yesterday afternoon. He napped most of the afternoon and actually went to bed early as he was tired and fussy. Today he seems to still be tired. Got up with him around 6:30am and he was back to sleep by 7am. Slept till about 9:15am and back to sleep by 9:45am. Anyone else's LO's seem more sleepy than usual the day following their shots?