Have you received your saliva test yet? I have the same problem you do. I wake up at 4 every morning with stomach pains. They go away as soon as a wake.
I am still awaiting the results of my saliva test. That is my last and final hope for finding out what my pain could be. I have noticed the last few days, being under some added stress, seems to make me feel worse. If there isn't much stress at the time, or if I'm on vacation, I tend to feel much better, almost completely pain free. I'll keep you posted about the results. I hope that is the answer to my mystery.
Wombmate
I have been experiencing low, right side abdominal pain which radiates to the back, since March, 2007. It is not always present. Comes on strong after falling asleep and waking up on my right side. I have had a CT, Ultrasound and am going back to my gastro specialist August 6. The interesting thing about my pain is that it comes and goes and about the same time I started with the abdominal pain, I started having soreness in my right foot. The foot discomfort is on the outer edge of my foot and sometimes when I've been sleeping on my right side, I wake up with pain in my right side and pain of my right foot. Sounds crazy but it is true. Good luck in finding out what your problem is.
Weezo
I too experience exactly what you describe, and have for several years.
Every morning at around 4am I am woken by hideous pain that seems to radiate from my lower back (kidney area) through to my whole abdomen stopping at the base of my rib cage. I find the only relief to be curling up in a foetal position or holding a pillow tightly against my stomach. Its the same story every morning until I get up when the pain subsides within about an hour, often after opening my bowels.
I am a coeliac and my Doctor has told me that "You have to expect some discomfort at times"! He also says I may have IBS.
Have you had a coeliac screening? I am inclined to think this pain is in fact a bowel condition rather than a back problem, as certainly in my case, the worse the pain in the morning is seems to be related to a need to use the toilet about an hour after rising.
Strange you mention an increase in belly fat, as over the last years I too have this, though am slim otherwise.
I had a thought the other day after talking with a friend/classmate. Have you ever heard of saliva testing? They test I think 5 different hormones, one of them is your cortisol level, this has something to do with your adrenal glands, if you have to much cortisol, you may have adrenal fatigue, our adrenals are right above our kidneys. I am going to the dr tomorrow to get a kit to have my saliva tested, I send it in and they call me with the results. I am very hopeful about this since I am so exhausted and have had an increase in belly fat which is another symptom of to much cortisol. I'll let you know when I get the results back. I have a glimmer of hope, I just don't want to get to excited about it and set myself up for disappointment again. But it is so very frustrating....
Wombate I have been experiencing something very similar to what you describe, for about 6 months no and the pain seems to get progressively worse.
My pain also wakes me up in the early morning (around 4am) but is based in my left side. It is basically impossible to sleep on my left side but sleeping on my right side it is a lot less painful. I feel the pain only in my left side and it increases when breathing in (even during normal breathing but the pain disappears when I get up. I have had similar test i.e. blood test CT scans, abdominal sonar tests, colonoscopy, gastroscopy and although I was diagnosed with diagnose IBS two years ago they cannot find anything else abnormal. My next step is a MR spinal scan.
I will let you know if I find a explantion for this strange condition and will appreciate if you can do the same.