Could it be CIDP?
Just a thought, when you mentioned that prednisone helped you out (even the little that you were given,) I was thinking maybe you might have CIDP, or the chronic form of GBS. Usually steroids will exaccerbate GBS, while they usually help someone who has CIDP. Also, the fact that you never became completely paralyzed like the majority of GBS patients do. Just something to think about when you go to see a neurologist here in the US. If you keep getting worse & not better after getting IVIG I would start to think maybe it is CIDP.