My grey parrot today

Last Friday we went to the bird vet to trim his beak and when I got home he suddenly didn't eat on his own anymore. To make a long story short... most likely he hurt his beak (nerve?) and everything he tried to eat, hurt him... not funny.. a friend brought some (baby) formula and I started to feed Tommy twice per day. My bird vet also sent me some metacam (painkiller) . Got that yesterday and I immediately started with that.. and tonight???? he is eating! yeah!! good boy!