Hi, I missed this thread, but now that it reappeared I just wanted to point out something about the AN being white again. This is very typical - after radiation you may (or may not) see darkening, indicating necrosis, but then the dead cells turn to scar tissue, which appears white with contrast. So I don't understand what your doctor was referring to when talking about the possibility of "regrowth". Was there any change in dimensions?
I understand how unsettling it is to have new symptoms appearing so long after being treated. I have experienced this myself recently, 18 months post-GK, with an episode of hearing loss and the reappearance of some trigeminal issues. My doctor said that since the radiation effect on the cells of benign tumors can be delayed, causing delayed symptoms.
I agree with Sue that what you described sounds like your trigeminal nerve acting up, however this seems strange, since your AN is so small and it shouldn't be involved with your trigeminal. Just to be on the safe side, if these symptoms continue I think you should consult with your doctor.
Keep us posted.
Marianna