Dr O\'Sullivan over the period of time that I was seeing her was rude, arrogant and very unhelpful. I struggled with my cpap machine as I am a very restless sleeper, always have been, which kept moving my mask and waking me up during the night and leaving me feeling exhausted the next day. While she gave me a couple of expensive options for me to try on a limited income she let it be known how frustrating I was and that everyone else never had a problem with their cpap machines and how important it was for me to use mine. Needless to say that I now don\'t use my cpap machine and have not done for years and I am still here despite the hoo ha and millions spent on her and the cpap machine and hospital test etc.