When I was first diagnosed, it was after using the blood oximeter on my finger overnight. That was last November but I was tested again in July, 3 months after my DS surgery and on that occasion they strapped a monitor to my chest with electrodes on my calf muscles, a couple around my stomach and chest and one under my chin.
Was great to see the confusion on the consultant's face when I went back a week later and he was most curious to know why they could not find any sign of my sleep apnea.
The weight has really flown off me now since April. Lost about 6.5st and just feel a different person.