Hello all,
Vet said that she suspects it's EC. Sid is having an x-ray to elimate any bony damage/masses and having blood taken (apparently there is a new EC test that shows whether it is active in the body as opposed to whether it is present?).
Aside from that we will treat with the usual EC meds from the sounds of things.
Thank you all for your vibes. Lovely fella Sid is, my big squishy teddy bear bunny, so patient and gentle, never has been one for amateur dramatics, just getting on and nomming his way through life, you wouldn't have known there was anything wrong until he started trying to move.
Will let you know the outcome of various tests xx