So my dragon makes this weird gulping sound an motion like hes trying to swallow something. i know he dows not have anything in his mouth because he will just do it even when he has not been fed yet. he normally does this if hes in his tank and i put my hand in to fast or like abruptly stand up. i have a video of him doing it in the bath but the video is upside down so i would rather not post it unless i have to.