Yes my little 1 year old does that. At first I had no clue what he was doing and then he kept doing it more and more, and he did it to the point where he would just stand there and cough for a couple seconds. I took him to the vet and they said the same, kennel cough or a Collapsed Trachea. He gave me some antioboics and some cough medicine to go home, the antiboics helped but didnt make it go away, The cough med helps a little as well. So they said the only way to really know is to do xrays. So we did the xrays and they say everything looks ok. I do keep him on cough medicine and when he coughs more than 2 times a day I will give him some, The Doc said to give him the cough med 2 times a day even if he doesnt cough but i dont think i should drug my baby if i dont have to. So if i were you i would go get some xrays. Thats the only way to really find out, and if your baby does have a Collapsed Trachea the only cure is cough medicine, well thats what they told me look at some websites and so some research on it!! if you have any other questions feel free to ask me!! here is a website to start you off
Collapsed Trachea|Small Dog Throats Collapsed Trachea in Dogs the cough med does get spendy well at least for my vet if you want to wait a little on the xray you can give your baby some robitussin dm, the over the counter cough medicine for humans you can give dogs that as well thats what the vet recomened me if i didnt want to pay for his cough medicine. oh it also helps when they are coughing like that is to rub his throat up and down until they stop, i do that everytime for peanut and i think it helps and calms him down. GOOD LUCK!!! hope it all works out