If it were the trigeminal nerve, you wouldn't be sitting and writing "lol". My tumor grew just enough (12 years after initial diagnosis) to impinge on an artery, a vein, and ultimately to squash the trigeminal nerve. The pain was so excruciating that I begged the neurosurgeon I had selected to take me ASAP--I ended up flying across the country and kind of missing Christmas. They call TN the "suicide disease." Imagine you're having dental work and the nerve is exposed........then someone puts a live wire on said nerve. It's the worst pain I've ever had, and my first child was taken caesarian after 12 hours of hard labor. I'd take that again before trigeminal neuralgia.
That said, there are so many nerves right there where our ANs live that any of them could be affected. Was your tumor completely removed, or did the doctor leave a piece on any of the nerves to preserve either hearing or facial function? If so, it could have grown a little. Could it be your jaw? Possible, but not probable, as everything is kind of closely stuck together in there, but I can't see the dumbo part being affected by the jaw (alert--I'm not a doctor or even a nurse!). Only your doctor can say for sure, and who knows if he/she will even know. Hopefully the symptoms will just go away like Doc's.