Cooter has started to drool excessively lately. I noticed it a few days ago. There were drool patches on the bed where he was laying. Then last night, there was drool hanging from his mouth, down the couch, and collecting in a pool on the floor! Now, he does drool, but not like this. Could it be because of the cold? Are there any medical conditions I should be aware of, or signs to be watching for? Nothing else seems different, but YUCK! Just wondering if this is something to deal with, or be concerned about!