Pinot is 3.5 yrs old. She has always been a prolific layer but has been slowing down due to weather, age, etc. today. She’s acting lethargic. I picked her up and fluid leaked out her vent. I pulled out what is in the first photo and some fluid continued to leak when I sit her down it looked like she was gagging a bit as well. Please any suggestions as to how to help her she’s walking around better now, but is not eating. Thank you