Since your positive ANA is so slight and you don't have elevated LFTs, if they do diagnose you with AIH, my guess would be that they won't start you on treatment yet. There are some who don't need treatment but you do need to be monitored in case your LFTs do get higher. Then you can avoid liver damage. I think they would want to keep you off the meds until you really need them.
I just looked up dysautonomia...interesting. I have excessive thirst, dizziness (I can be sitting in a chair and the room just spins) and orthostatic hypotension. So maybe lumped together I may be positive for that and I have always thought they are just what's normal for me? That would explain a lot. I'll bring it up with my doc the next time I see her.
Let us know what happens with the specialist.