Melancholic Depression?

Its kind of long, just a warning.
Basically I've recently noticed that I'm not normal. At first I was kind of skeptical of the extent of my psychological problems, and having been very skeptical of psychology back then I was more convinced that I was normal. But then I thought about it and I saw that I wasn't normal. I don't really get pleasure out of anything, and I really have just a nearly all pervasive feeling of emptiness. My parents(I'm about to turn seventeen) are a lot more excited than me about things like working towards a driver's license and all the stuff they cared about at my age, but I honestly don't care about it at all. I realized that I basically just put on a huge facade to everyone else that I'm a somewhat screwed up kid, but still within an acceptable range. I've also realized I do a lot of things trying to elicit emotional reactions from myself, but its always a failure save for all too rare moments when listening to music. Sometimes tears do come out, and I laugh a whole lot, but its no deeper than the physical reaction. I have absolutely no work ethic, morals, will or goals, or really any wants for that matter. My mom has been noticing the previous lately and I think it worries her, which if she thought it was more serious than she does it would save me work. Most recently I've had trouble getting to sleep. Any tips on approaching her about wanting to get some sort of diagnosis or treatment?

Too long; Didn't read/Meat of the above without the slight venting:
I'm seventeen, no drugs or alcohol. Nigh on complete anhedonia, nigh on complete emptiness, near-total/possibly-total apathy. Do I have depression or dysthymia, and if so any tips dealing with it personally other than those posted in the sticky? Also where/from whom to get diagnosis/treatment?

Also, its interesting realizing you don't really understand what a large portion of the vocabulary you have been using for years really means.

Many would say that you are suffering from depression. That may be true. A doctor could try you on antidepressants that may totally change your life. You may want to talk to your family doctor.

Good Luck,
Jim S