My pacific tree frog was just sitting on a rock spasming... his throat was bubbling out, but not in a normal way, the bubble was sticking out sideways left and right back and forth... and he kept pushing on it with his hands like he was choking... I'm really worried that something in the terrarium caused this. All I have in there is gravel that is too big to swallow, moss and water though...He's sitting on the rock normally now like he's fine but it was really scary to watch!!!