Thanks Pied great help there,
He seems to have settled down a little since this morning however he isn't hiding as much as he usually does. he's just basking with his head up against the walls of the viv.
I also noticed today the collar on his heat bulb had come loose and fallen onto the bulb, it had began to melt and fused to the bulb, I don't think it had been like that long but i'm begining to think possibly fumes from the melted plastic was effecting him. However i have changed the bulb and going to get him to the vet asap,
Thanks for all your help guys, from both me and snake,
(I really need to think of a name for him