Hi again,Thank you for your patience. There are quite a few things that could be going on here with Buddy tonight, but given his age at around 13, along with the symptoms you are seeing of his bloated abdomen, pale gums and big eyes, I am quite concerned he could have a heart or internal organ issue such as liver disease. The bloated abdomen could be due to an enlarged organ to fluid in the abdomen as a result of heart disease
and this in turn could explain the pale gums. We also have to consider a stomach
twist here as well. It is very unlikely that his dirty left ear has anything to do with his symptoms tonight, so I wouldn't be concerned about that. If he seems lethargic now and has pale gums, there is no question that you should get him to your local ER vet straight away. If he seems to have improved in the last 10 - 15 minutes, then for now you could keep a close eye on his mucus membranes, capillary refill time and respiratory rate as follows:Mucus membranes - flip his lip and look at the color of his gums. They should maintain a nice salmon pink color. Get him to the emergency Vet if they appear white or very pale pink, or if they are a dark deep red color.Capillary Refill time - this measures blood perfusion and test this by putting your thumb on his gum to apply pressure. After you release your thumb you will see the gum blanch. Capillary refill time is the amount of time it takes (in seconds) for the gum to return to a healthy pink color from the blanched white color. If 2 seconds or less don't worry - if it is taking significantly more time, again - off to the emergency Vet.Respiratory Rate - if he is continuously panting throughout the night, this is a sign of shock and or pain and a signal for a trip to the emergency Vet.If anything of these parameters aren't right or if he seems to be lethargic, then please do get him seen straight away. I hope all of the above makes sense? If you have more questions or if I can help in any other way, please do not hesitate to ask! If you would like to accept my answer, please press RATE OUR CONVERSATION (I am not compensated in any other way). Bonuses are always welcome. Thanks! I hope to work with you again soon!Kind Regards,Dr EPS: If you have additional questions after you rate the question, you are welcome to request me for additional conversations if I am on-line or by beginning your question "Dr. E..." or "Pet-doc..." and others will leave the questions for me.