Payton is 16 yrs old and was diagnosed as hyperthyroid six years ago. She is on Methimazole (3/4 tab am & pm). Ever since she started on the meds I have noticed that she has a stuffy nose. But always thought it was because of food allergies. This year, we learned that the generic Methimazole wasn’t working, so we switched her to Tapazole and now the symptoms seem worse. Payton snorts and sneezes frequently. But the scariest thing is when she goes to purr … if you watch the video you can see what she goes through. This morning she was purring and then went into a coughing fit. She coughed at least 10-14 times. It scared the heck out of me and my family. If anybody knows what is going on, I’d love to know. My vet has no idea and wants to slightly sedate and then scope Payton’s throat. I fear that she is too old for such a procedure. I’m not sure what to do, but I hate to see her suffer like this. Thank you for listening and feel free to share your thoughts with me.