The most honest answer I can give you is maybe. In order for a lawyer to properly evaluate your potential case, he or she will need to look at your medical records. In your case, this would include the records of the doctor who did the first surgery, the sleep study results, and the records of your primary care doctors. The records are necessary because the lawyer will need a letter from a expert in order to file your case, and s/he won't be able to get this letter without the records. He or she also need to evaluate the case to make sure that the case has enough value to make up for the fact that medical malpractice cases are really expensive to work up and try.
I urge you to see a lawyer quickly-- even if you don't have the records, he or she may be willing to help you gather them. A statute of limitations applies to your case and, although I don't have enough information to know what that statute date is, I know that there's nothing to be gained by waiting. I wish you the best of luck.