Hi. I've been diagnosed with severe sleep apnea - during my sleep study I stopped breathing 120 times per hour apparently, with the longest stoppage being over 80 seconds 
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Despite this I had no real symptoms i.e. excessive tiredness etc. It was diagnosed following routine checks for something else.
Anyway, I got given a CPAP machine last week - state of the art technology and all that, but since I've been using it I have been SUPER tired every day. I was wondering, is this normal for the first week or two? Has anyone had a similar experience? The pressure etc all feels good and I haven't been having difficulty with the mask or waking up in the night.
Hope someone is out there!