| My symptoms are that I'm waking up in the morning with a dull headache, and then I feel sleepy and irritable throughout the day. This happens every day. It started a few months ago. The same symtoms occured a couple of years ago and I went to see my doctor, and I underwent a pulse oximetry study. The results were normal. After a while the symtoms subsided. This time I was hesitant about going to the doctor because the tests from last time were negative. However, I am convinced that something is wrong. So I bought a pulse oximiter. There's an example graph below: The results showed an ODI (oxygen desaturation index) of 0.6 which well within normal levels (I think). So my current theory is that I've got Upper Airway Resistance Syndrome (UARS). I think the best way to test this theory is to use a CPAP device and see if the symptoms improve. In the UK a prescription is required for this, so I'll my doctor on Monday. |