Murph65 is right on. Proper diagnosis of narcolepsy requires a specific type of sleep study, but it's not something your family doctor will administer. Suggest to your doctor a referral to a sleep specialist, who can handle the sleep study. This is the only way to be sure.
Good luck!
Hey man, I just wanted to tell you that I'm not a doctor nor any medical professional history. But I was just recently diagnosed with Narcolepsy, with very similar symptoms just a little different. Starting when I was probably 7 I would hallucinate every night, hear see and feel, I would wake up paralyzed and when the hallucinations scared me I would become paralyzed again. I was EXTREMELY tired just like you, and also, didn't experience cataplexy, except sometimes my muscles would become weak and my eyes would blurr. But what I'm trying to say is yes, the symptoms your saying other then the snoring and kicking the legs are symptoms of narcolepsy, I also talk In my sleep on a regular basis/sleep walk. My advice would be to talk to your family doctor who should refer you to a sleep specialist, and you'll most likely have to do a sleep study. I'm not a doctor, just a 17 year old kid that is trying to help! Good luck, and don't just *let it go* I did that for many years, and now regret it, don't let it get any worse! Best of luck