Pixie is sick again...

Hello everyone!

I had gotten some great advice from all of you last time I had a problem. I am still having similar problems with my girl, Pixie.
She has been vomiting on and off since the last few months. I believe it is vomiting as she performs the "yawning" action repeatedly, sometimes bobs her head, and starts vomiting seeds everywhere, sometimes in small clumps of two-three and other times one at a time. She does this at night, and I can tell because when I lift her cover all the seeds clatter to the cage lining. But recently, she has been vomiting almost right after I give her head rubs. Could this be because of mating season? She is also acting hormonal, as sometimes she starts biting/wants to be left alone. I then let her be for a while, of course. I don't want to stress my baby! Also, when she has vomited it seems her droppings get more wet and green. They sometimes get stuck in her vent.

I am not sure if this is related, but many seeds she de-hulls she doesn't eat but just spits them out. I see many opened but not consumed seeds in her food dish. She also sometimes chews her seeds, as I can hear her do this at the food dish (I am sure this is not just beak-grinding, but it sounds like it). Some seed bits spill out into the food dish, which has helped me lead to the conclusion.

Luckily, she still chirps to music/TV/outside birds, is drinking, preening, and performing other normal actions.

I have no good avian vet nearby that I can go to, and I know that is a big problem. I have been giving her Bragg's Organic Unfiltered ACV which sometimes seems to help but sometimes does nothing.

I feel terrible about the vet situation... Does anyone have any idea on what illness she has and how I can treat it? I know it is a lot...