My 19 yr old son just got his septum surgery in June of this year after 2 years of suffering through migraines so debilitating that he would miss 1-2 days of school a week!! He's never said anything about athletic performance before versus after his surgery. However, he is no longer depressed or head-achy all the time. Personally, I believe the reason he would awaken with migraines was due to his inability to breathe well at night. Instead of being apneic and loud breathing, I couldn't hear a THING!! Now, I can plainly hear the sounds of breathing coming from his bed when I check on him at night. So, my point is... perhaps you don't have sleep apnea as most people think of it (unless you've been to a sleep clinic and cleared you as not having it at all)... but you could be breathing less and having low oxygen all night long. If that's the case, I DO think you'd be more rested and less exhausted after surgery. On a side note, if you haven't had your heart checked out, please do so... there are a few heart-related issues that could be affecting you (a congenital heart defect like a small hole in your AV septum or long-QT syndrome are two of the things that kill seemingly "healthy" young athletes) could be the issue. Check that before any surgeries!!