Should I get him checked out?

On Tuesday I took my 7 month old to the doctor because the night before he had a very small amount of diarrhea and he puked. He seemed way better and really happy after that. But the next morning he was being super fussy I went to get him checked out just in case and they said he was fine probably just a small tummy bug but no ear infection, throat every looked fine. Well since then he’s had a runny nose. And a small dry cough. This morning his nose was pretty stuffy sounding and still runny. He hasn’t had a fever, he’s eating just fine. So should I go get him checked out again? Or what do I do?