Sleep apnea is a very serious disorder and it might lead to complications, but, as with every other disorder, you have to be strong and fight it. It may sound like a cliche and of course, easier said than done, but you have to be mentally strong and think positive. Otherwise, panicking can only make your condition become worse. I agree with the above mentioned, you should contact your doctor and try to explain how difficult it is for you to wait. Meanwhile, you should try to minimize your panicking as much as you can and if you're afraid to fall asleep try to read some motivating book or drink some calming tea, etc. As far as sleep apnea is concerned, I've found some tips in this article that might help you. I wish you all the best!
Stuffed nose certainly causes sleep apnea, but there are also other things affecting it. I was just wondering, did you maybe consider rhinoplasty? Do you happen to suffer from asthma? I'm just trying to think of what might be the cause for your stuffed nose. Did you ever get the allergy test? You might be allergic to something in your surroundings and as a result your nose is always stuffed.. A friend of mine had issues with nose breathing all her life because of allergies, and I know she was using Xyzal and Pressing pills. They use to help her, but only in short term. Recently, her doctor told her to buy Avamys nose spray and she says it's the best thing she tried so far.