Vaccinations

First off, I’m vaccinating my kids so any anti-vaccination comments aren’t needed. My question is did anyone split up their baby’s vaccines? When my son was born, he was getting 5 vaccines at a time and got SO SICK. Fever for days (Tylenol brought it down) and throwing up for a day or two also. I’m wondering if some kids just react badly to vaccines or if it’s better to split them up so baby doesn’t get so many at once? 5 vaccines at one time just seems like overload on their little bodies.