The ALPA doctor thinks that the FAA has been unfair with the 12 months stop period and he said that the usual "observation" period for migraines is 6 months
Count yourself lucky, I'm pretty sure that the CAA insists on a five year migraine-free period before they will even begin to consider returning any type of licence. The vision distortion and aphasia are particularly worrying. I know it is a remote-ish possibility, but what on earth would have happened if the captain had become incapacitated too? That is where the real worry lies and is probably the reason you have to wait so long for a review.