left something out

Question
I Just asked a question about my military macaw throwing up her food. i forgot to tell u she eats her vomit. i didnt know if that was important or not. but almost everytime i go sit by her and talk to her she doesnt seem nervous but she still vomits in front of me. could i be the cause of it? do i make her nervous even if she doesnt show it or could she be sick? she taps her beak and bobs up and down then vomits.

Answer
-- Thanks for the additional info.  If she's re engaging it (eating it) it's not vomitus; it's regurgitation.  

 That usually means there's no disease factor, but more often a behavior issue - which was addressed in the original answer about how to curb regurgitation and other mating/bonding behaviors.

 Still, as I pointed out in the earlier answer - she might have an infection in the crop or gut, so it's worth a vet evaluation to be sure, but everything you're describing is in line with something many birds do