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First week- why is my cpap making me dizzy?
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vsheline Offline

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Posts: 1,906
Joined: Jul 2012

Machine: S9 VPAP Adapt (USA Model# 36007, not better 36037 or 36067)
Mask Type: Full face mask
Mask Make & Model: F10 or SimPlus w/ 2Liners. MirageQuatro & Gecko gel pad
Humidifier: H5i
CPAP Pressure: 15 EPAP, PS 5-10
CPAP Software: ResScan

Other Comments: Marfan Syndrome, chronic bradycardia, occasional Cheyne-Stokes Respiration

Sex: Male
Location: California, USA

Post: #41
RE: First week- why is my cpap making me dizzy?
Hi William Rothamel, thanks for sharing your experience, and welcome to Apnea Board.

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?

Take care,
--- Vaughn

(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.

Membership in the Advisory Member group should not be understood as in any way implying medical expertise or qualification for advising Sleep Apnea patients concerning their treatment. The Advisory Member group provides advice and suggestions to Apnea Board administrators and staff on matters concerning Apnea Board operation and administrative policies - not on matters concerning treatment for Sleep Apnea. I think it is now too late to change the name of the group but I think Voting Member group would perhaps have been a more descriptive name for the group.
(This post was last modified: 04-17-2016 01:22 PM by vsheline.)
04-17-2016 07:02 AM
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lizziethelion Offline

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Posts: 1
Joined: Jul 2016

Mask Type: Full face mask
Mask Make & Model: California
Humidifier: UNSURE
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CPAP Software: Not using software

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Sex: Female
Location: United States

Post: #42
RE: First week- why is my cpap making me dizzy?
Hi. I am also experiencing vertigo and have been using the cpap for 4 nights...I do not like my mask and want a different one....but i thought the dizziness was stress related, now i'm thinking it's cpap related. Anyone help me? thanks.
07-12-2016 11:52 PM
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Kris the Crone Offline

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Posts: 61
Joined: May 2016

Machine: ResMed AirSense 10 Autoset
Mask Type: Full face mask
Mask Make & Model: F&P Simplus small
Humidifier: ResMed HumidAir S
CPAP Pressure: 8
CPAP Software: SleepyHead

Other Comments: 68, started CPAP/APAP June 9, 2016

Sex: Female
Location: Illinois, USA

Post: #43
RE: First week- why is my cpap making me dizzy?
Hi, lizzie. I found this article in pub med,, called Alternobaric Vertigo in a Patient on Positive Airway Pressure Therapy, that relates to your experience.

Post #38 in this thread, linked here,, has info from Daria Vader about possible ways to help.

"Perseverance, secret of all triumphs."
Victor Hugo
07-13-2016 06:20 AM
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