Hello there, I have a dog, Lady, she is 11 years old. She is an Airedale Terrier and has many heart problems that we are keeping under control with medicine and a monthly visit to the vet. Today I woke up and went to let her out, she was fine except I noticed her tail was tucked and she was opening and closing her mouth a little weird. I thought that she just had something stuck in her mouth and payed to mind to it. Later (around 2:00) I went to make her some lunch (Oatmeal with chicken, broccoli, celery and mixed with a cup of soup.) I took her medication and put it into little weiner hot dogs like I normally would so she would eat them without spitting it out. Then I called her over and left the kitchen. When I went to check on her, she was still standing there, her food had not been touched. I thought, ok she's just not hungry, but she still needed to take her medicine. I took the sausage and kneeled down and noticed that one eye was swollen, I thought it was because she had been laying on her side all day.
When I tried offering her the food, she turned her head away, her tail tucked. I told her if she refused to eat that I would have to force her to. Well I tried gently prying open her mouth and she let out a squeal that was louder than I've ever heard before. (She doesn't really bark unless someone is outside.) I tried one more time to get the same responce. I quickly let her outside again, she went to the bathroom and stood with her head tilted to one side, opening and closing her mouth less than half way.
Now two hours later, my dad got home and we think it might be a bee sting??? The swelling in her eye went down, it's gone completely. But she still refuses to eat and open her mouth.