I was rated at 30% for sleep apnea. It says a higher evaluation of 50% is not warranted for your obstructive sleep apnea unless it requires use of breathing assistance device such as a cpap machine. I was given a cpap machine that I have been using and it has been helping out alot. So I am wondering now that I have the cpap how difficult is it going to be for me to get them to change my percentage from 30%-50%? Thanks for your time.