Hi. I have had my corn snake for a year now. When I first got her she had a chest infection and received antibiotics. No problems since. Tonight I noticed that she is opening her mouth like she is pushing something. Tongue right out and mouth wide open. She ate 2 days ago. Shed 4 days ago. I am not hearing any whistling in her breathing. When she was resting this evening she wasn't doing the behaviour. Only when she is active and moving. I am wondering if there is anything possibly caught in her throat. Anyone have any ideas. Thanks