My Lonzo, who's almost 9 yrs old, had the same type of thing; we found out later a virus went through all our dragons & made them sick to their stomach. So I was beside Lonzo when he threw up, but some worms got stuck in his throat & he stopped breathing. So I grabbed him, put him upside down & tapped his abdomen, that got the rest of the worms out. Then did dragon CPR, which worked! Yeah! It sure took me by surprise but I was so glad he survived. It's not really the same sort of thing you were talking about, but it is amazing how instincts take over, as I don't have any medical training. Who knew that CPR works on dragons? That was 2 years ago & he's in great health & eating away. I did take him to the vet after that, twice, just to make sure everything was ok & it was. She was very proud of me for taking the right steps so quickly. My dragons are like my kids, I always want to make sure they're healthy. So any time you're not sure, just life him gently upside down & tap his tummy. Seems to work!