Repeatability is the key.
I agree there is evidence for making the logical link that in your case turning off the humidifier helps to avoid the dizzyness.
How repeatable an experiment is tells us how strong the link is. If you repeat the experiment a few more times with similar results, it would establish that there is a strong link.
Some questions for consideration would be:
In the occasional occurances of dizziness, how often did it start and stop, so how likely is it that by purely by chance no occurances occurred when the humidifier was off for a few weeks, and how likely is it that purely by chance the dizzyness might go away after one night? And have you been watchful without success for any other possible links, such as perhaps strong sneezing or an unusually long apnea, or an unusually high APAP pressure excursion occurring the nights when dizziness started?
(04-07-2016, 11:21 PM)eseedhouse Wrote:(04-07-2016, 04:35 AM)William Rothamel Wrote: I too have suspected that my sometimes severe dizziness was a result of the CPAP machine since I never had cthis problem before using a CPAP. I have had CPAP for several years and some few times have actual visual spinning and dizziness when bending down or looking up or down.
Recently I ran out of purified water this winter and took a few weeks to get more so I turned off the humidifier. No dizziness during this time. I recently reactivated the humidifier. got dizzy again. Tonight i shut off the humidifier and am not dizzy. I clean the chamber and mask every night.
I think that what is happening is that the CPAP is pushing moisture through the eustachian tubes into the inner ear which is critical for balance.
I think there is a lot of evidence here for me to make this logical link to the problem i have had with vertigo. Doctors may be smart enough but having trouble with logic as to cause and effect.
I think it's you who may be using confused logic. Just because something starts after something else ...
There is even a fancy latin name for the logical error you seem to me to be making, i.e. "post hoc, ergo propter hoc" (after this therefore because of this) and it's been recognized as incorrect logic for hundreds of years.