My new Dreamstation

[E.W.]

After some prodding here I retired my old Remstar Auto and got a DreamStation Auto . Because my 
prescription called for a cpap set at 14 cm the DME had to set it that way and I used it like that the
first night like that and had an AHI of 6.55.  Then I reset it to Auto with a low of 10 and a high of 18.
My first night in auto my AHI was 1.86 then the next night it was .93  Then I started a low carb diet
and things got interesting. The last 10 days following a low carb diet my average AHI is about  2.2 . 
With only one night having an AHI as low as .98  when eating low carb.  Now in itself that difference
is trivial but I noticed the same thing when using my old RemStar but in that case if I was eating a low 
carb diet my AHI was about 6  but on days I ate a lot of carbs it averaged about 2.5   at least the new
machine is giving me a lower AHI even if I do low carb.  One other thing I noticed it seems I do better
with the DreamStation in auto mode but I got about the same results with the old Remstar in cpap or
auto mode  Oh I had some fun with my RT at my DME  I asked her to help me reset the pressure on an 
old cpap  I had it only had 39,174 hrs on it just geting broken in good!

[Beej]

You might pick up a home glucometer and check your glucose about 2 hours after eating and/or before bed to see how that corresponds with your perceptions. You can put it in the notes section of SleepyHead.

[E.W.]

Being a type 2 diabetic  I already check my blood sugar 
and it doesn't seem to be related to my blood sugar
level.  It's no big deal but just wondered why that was
happening,

[justMongo]

Being DM2, a low carb diet is usually recommended.
There may be a pH shift with low carb. That could have an impact on breathing.

BTW -- when you say low carb.... How low?
If really low carb, I'd check for ketones in urine. Your doctor may or may not have issues with ketones in urine.