Feeling Constantly Tired?

For a little over a year I have been feeling constantly tired... all day... every day. I can get a solid 9 hours of sleep and i will still wake up and feel exhausted. I have days where I wake up and 2 hours latere I am already ready to go back to sleep. I am diagnosed with depression and am working with doctors now to see what is wrong with me. It's such a frustrating feeling and I was wondering if anyone else out there feels this way?

I would recommend a sleep study if you haven't already had one to determine what is really going on while you sleep. If you snore, you could have sleep apnea.

Perhaps I should also add....
I've had the same problem with tiredness and depression for years, and I couldn't get anyone to listen to me. I finally found a health professional that took me seriously and ordered a sleep study.
The study revealed that I only had one cycle of REM sleep over a period of time when I should have had three. Only then was I told that REM sleep suppression is a side effect of many antidepressants (SSRIs and SNRIs).
I am now working with a sleep psychologist. I'm still in the early stages of treatment, but I am hopeful

Hello, I was dx w/ sleep apnea 10 yrs ago and have been using a CPAP. It was a little difficult to get used to be sooo worth it. Just to give you an idea.....sleeping 2 hours w/ the CPAP made me feel way less tired than 10 hours of sleep w/out it. My sleep study concluded that I was having very freq apneas. 2 per minute!! Lasting between 15-45 seconds. It's no wonder that I was ready to go back to bed an hour after waking, nodding off at the wheel, extremely irritable (go figure ).
Please send an update on your apnea re: being treated w/ CPAP, or dental appliance, etc.