Just wanted to let you know that I have a right-sided AN, and strange enough, my left eye has been twitching for 7 months. My GP says it is lack of sleep or stress-related. I have not seen my neuro yet to ask him about it, but I noticed that it does occur more when I am under a huge amount of stress.
It would be interesting to find out if they were related, since your AN is on the left and mine is on the right, and our eye twitching is the opposite side.
If I find out any info on it, I will be sure to let you know. Otherwise, I would not be that worried. Mine has calmed down since it began, so now it is just occassional twitching instead of all-day twitching.