I'm concerned about my 6 month old kitten because he keeps making these noises (see video). At first, I figured it was just a hairball but he has not vomited or even coughed up any thing. My next guess is the noise is actually him coughing. I first noticed the noise about 5 days ago. He has been eating, drinking, and going to the bathroom regularly and has not shown any signs indicating lethargy or anything out of the ordinary. Am I overreacting or should he be seen by a vet? He was seen by a vet about 2 weeks ago for neutering and to finish up with some vaccinations. He will go through spells in which he coughs several times in a row and then seems fine. This occurs a few times a day. Thanks in advance!