Fussing when I try to feed solids?!

Anyone have this happen?

I got clearance from the dr (he turned 5 months on the 1st)

I tried on Saturday he fussed when I tried to feed him, and just did the same today.

This seems weird, maybe he’s not ready? But He shows all sort of interest when we’re eating and even drools and mimics ya when we’re chewing?