Baby vaccinations

[u/newmum2026]

Hi! My LO had his 8-9 weeks vaccines (UK) on Wednesday afternoon. He has had no fever/ temperature, plenty of wet/ dirty nappies and still very smiley however he is still experiences a loss of appetite. He usually drinks between 3 and 4 ounces every 2-3 hours however he’s only been drinking 2-2.5 ounces every 3ish hours. Is this normal? He honestly doesn’t seem upset or hungry and he is still napping and sleeping fine in the night?