Throwing up

Hi everyone, I have a 4 1/2 month old Jenday Conure who is fun and outgoing at all times. My question is I see him doing the head sway that everyone says they'll do when they throw up to show affection but instead of creating a thick amount like most birds do he just flings it everywhere.

Now I'm not sure if this means his presentation is a little sloppy or if he's throwing up because he doesn't feel we'll. Now this happens almost everyday. He drinks and eats normally and seems fine right after he doesn't even make noises. Any experts can you tell me what this means? Thank you in advance!