What are normal side effects of 2 month vaccines?

My son got vaccinated yesterday. I wanted to spread out the vaccinations to separate weeks but the Dr was being a dick and so was my husband so my son got all of them. Today he has been sleeping almost non stop. Usually he's awake from 10-2 and then sleeps for 2 hours then is awake until bed time around 10. Today he has just been awake to eat and has barely had any pee diapers where as usually he always has a pee diaper even right after I put a fresh one on. My husband told me originally not to buy a thermometer because he would just buy one when our son got sick so we don't have a thermometer until he gets home. Is this normal? 😑