She may have swallowed something that is stuck, or possibly a string or thread. I had one swallow a thread partway down and it wrapped around her tongue and went down the throat. I was able to cut it and unwrap and she was fine after. Had another that swallowed a long strand of horse mane or tail, it would not come out. I cut it where it was coming out, gave him some mineral oil and hoped for the best. I don't know with yours. If she were important to me, I would take her to the vet. They could possibly try to see what is going on. Good luck. If she can't eat or drink and you can't take her to the vet, I would end her suffering.