Changes

I don't think your CPAP machine saves any personal information like name, e-mail, credit card, social security number, but someone with access to your real world medical info might be able to link your internet identity to your real world data. It should only be a problem if someone in your doctor's office or the supplier finds your post and decides to look you up. It seems really unlikely they'd find your post and take the trouble to "hunt you down." It doesn't seem like something that would attract hackers or "data miners," even if they did have access to the records of your doctor or supplier. Note that the data you put into SleepyHead, Encore, or ResScan does not get put on the SD card.

If you want extra privacy, 7-zip will allow you to create an encrypted file. You can put a file on dropbox, and then send the key via a different method such as e-mail or PM.