Two month old sleepy day after shots. Normal?

Yesterday afternoon my daughter had her first shots. She was sleepy right after, fussy when she woke up, slept as she normally does at night, and this morning she was normal. This afternoon though she took a 3 hour nap on me and only woke because I couldn’t hold my pee any longer lol! About 45 minutes later I had her in the kitchen with me and she fell asleep again in her rocker chair thing. I moved her back to my lap with me and she’s back asleep. Is it normal for babies to sleep a lot after their shots?

No vaxx vs. anti-vaxx comments please🙂