Do I have depression?

I wouldn't say that i always feel particually sad or suicidal which are the words i commonly hear from people clinically diagnosed with depression. The people i know with depression have all had hard lives, struggle daily with parents, feel the need to cut them selves and have genuine troubles in life. I have none of these issues, i do well in school, have some friends and am even happy sometimes(only with the assistance of alcohol, weed, 2cb etc). I generally feel tired all the time despite being mostly healthy and getting a good amount of sleep. There is a constant urge in the back of my head to go home, sit in a corner and just sleep. I am always bored and feel very little in normal social situations, but smile and laugh anyway to not alienate myself. I never feel content but i am very against asking for help in most situations. I don't think i would ever take my own life but i wouldn't mind dying if i knew it wouldnt effect my family.

It feels wrong writting all of this, nobody knows that i am even slightly unhappy in life, and for good reason, i have no reason to be upset. I feel like anyone would be wasting their time in my problems when there are much more serious problems affecting people around the world.

Sorry for text wall of shit, just had to put it out there for once.