Just taken him to the vets, he said he looked ok and couldn't hear any wheezing etc. just to keep an eye on him and if he shows signs like he did before (I showed him the video) to take him back for antibiotics. So just on the way him now and going to give him a feed and hopefully he'll take it as good as he did last night.
Wait, the vet you took him to only did a 'look-over' and listened to his breathing?
Blood should have been drawn, a cloacal swab should have been done, a fecal test, possibly even a ventral swab. Those 'samples' would require lab testing to rule out any unwanted 'nasties' your baby could possibly be harboring, and to rule out infection of some sorts.