I'm wondering what exactly is the difference between reverse sneezing and collapsing trachea? Zoe does this and I am in the process of getting her in for xrays. The vet examined her and said she didn't think it was collapsing trachea but not sure you can really tell without an xray. I just want to be sure because I'm a worrier and I'm also looking at showing her but that's not possible if she has collapsing trachea.