I have been diagnosed with Thyroid cancer and still have difficulty breathing since the removal of my thyroid in Oct. But, the worry is really getting sick in general. There is a guy that sits next to me at work that coughs all day long and that worries me. But its sort of the same worry as getting sick in general. Though maybe a bit more worried and anxiety about it then if it wasn't around. Customers call with their tv blaring about it and that doesn't help.