Wow that is stinky .. Ya I am not sure what is wrong with one of my FBTS he started getting fat but would still eat and his color was great he would move around then he had these spasm just for a few hours straight and then he was better but still acts drunk and moves his head side to side looking up in the air.. I got him from someone I have no idea how they had the tank set up for him. but he seems to do fine but thats what I am wondering if he has swallowed something and cant pass it idk.. I have big pebble rocks in there as big as there head and bigger so I know it couldnt come from me . My husband told me maybe hes just old and I just laughed lol