Conch gone mad

[Britott]

Hi all, has anyone ever had a sand sifting conch seem to lose it's marbles, one of my conches can't seem too pull itself along so well and is constantly flipping itself around in circles for no apparent reason, been going on for the last few days now. Very bizarre, anyone else ever encountered this before.

 

[reef lover]

Nope...bump for.more views....

 

[PDR]

I've had quite a few conchs and have never seen anything like that.