Tyco's mom

I have to jump throuh hoops with my insurance to get this proceedure covered. I have severe sleep apnea. Do you think I won't get cleared if I'm not using my machine (have to get cleared by pulmonary, along with others). The masks just freak me out; I think I'm a little claustrophobic. Anyone dealt with this? I ask because I can't just ask them because the response will be, "you'll get used to the mask. Just wear the mask" Thanks for your time! Tyco's mom