My green cheek conure was doing just fine, ive had him for about half a year now, and out of nowhere he died. Was completely fine and acting normal, than he flew to me, starting vomiting. Just keep trying to vomit. He than starting acting weak and disoriented. Did not want to move around, was moving somewhat in a circle (not walking, sitting and moving around). Started panting for a few minutes, twitched a few times, and just died. It went from a seemingly perfectly healthy bird that was happy, to dead in around 20 minutes. Does anyone have any idea why this could have happened? No chemicals were used around him, nothing new environmentally