My hen keeps "gasping"
My 2-3 year old hen keeps making "gasping" or "swallowing" movements. She has been doing it for a few weeks now. I know it's a bit late to only ask about it now, but it started when I was busy with my exams so I didn't see her that much.
Usually my chickens fix themselves so at first I kind of ignored it, but I'm starting to get worried. About a week ago I googled it and they said I should massage her crop and give bread soaked in olive oil.
Well I did massage her crop, and the next day she seemed better so I was happy, but it's been a few days after that and she's again making big gasping movements.
She doesn't want to eat the bread soaked in olive oil (she's a picky eater) she eats and drinks normally and her crop does go empty after she sleeps and still poo's normally and everything. I also opened her mouth to look inside and saw nothing.
Does anyone know what it might be and how I can help her? I'm really worried.
Edit: she seems to be "swallowing" harder when she is laying/sitting down than when she is standing