Is my fish pineconing?

We got him and the tank from someone else and he just started doing this. I researched dropsy and he looks like he's pineconing 😭 please don't be mean I'm really upset, as far as we knew they were all healthy.

We got him and the tank from someone else and he just started doing this. I researched dropsy and he looks like he's pineconing 😭 please don't be mean I'm really upset, as far as we knew they were all healthy.