Glad it worked for you ECHOES! I doubt you "happened" to lose weight and stop smoking
The CPAP often helps the body so much that ppl do lose weight from using it. (I feel it is due to the increased oxygenation of the cells, which is the main goal of aerobic exercise too!)
Even though you can realize you have sleep apnea without the study, you need the study done so they can determine how much pressure to set the machine at...for when you have the CPAP, that is.
TC