You should see a pulmonologist and more things need to be ruled out. We could probably list dozens. But, meanwhile, it also pays to make sure your PAP therapy is optimized to rule that out as a cause. Do you have Sleepyhead software and can you post a typical night's chart? How do i get that chart?...

Thank you for all the feedback. Met my pulmonologist yesterday and he clear me everything is good from his end. I have started looking into other specialties (starting with rheumatology for any auto immune diseases)

Was diagnosed with mild sleep apnea 7 months ago and has been using the machine from then. My problem is not able to perform any physical activity for more than 10 mins, Either it be walking or any house hold chores. With in few minutes of any physical activity i start to feel sick/exhausted, If i t...