Hi Rayne & Snuggles,
I am on Lexapro, but on a higher dose than normally suggested. My doctor increased it to 40 mg about 2 weeks ago. I too experienced the side effect of yawning and not being able to get enough oxygen in my lungs when I breathed in. This happened about a month or so ago. But I'm not sure what actually caused it because I am on more than one medication so I don't know which one actually caused this reaction. But I think it could have been the Vistaril or even the lower dose of Lexapro because now I don't seem to have this side effect anymore. Hope this helps, but I would bring it up with your doctor, and look up the side effects on the website for extra information. Take care. Oh, Rayne, is Cipralex another medication for Lexapro, I'm not sure? It seems to be a newer medication.