I dont get any joy out of anything.

I am 27 years old. I have been unemployed for at least 6 years now - by choice. In my previous line of work i made enough money to last me for quite a while. I used to never get bored. When i was done with my jobs i was grateful for any quiet time i could get. To my problem. I dont get any joy out of anything. I have no interests, no hobbies. The people that i hang out with think they're my friends but i dont consider them friends. They talk behind my back to my wife how i am not normal and how its weird that i dont do anything and they say theyre worried but none of them have the balls to speak to me. I have to hear it from my wife. If i approach my "friends" they say everything is ok and they never said anything. The only friends that i have are my wife and my daughter. A few months ago i noticed change in the way i think. I started realizing that some day my daughter will be all grown up and will have a life of her own without me. I love spending time with her but eventually that will stop. Change is in the nature of things. Like i said, i have no hobbies. Everything i touch bores me. The thought of picking up some kind of activity repulses me. I used to read comics, play xbox or watch movies and stuff like that but i quit all that. We had a car accident a few months back and i noticed i dont feel the way i am supposed to. I felt downright bored. No stress or anxiety or whatever people are supposed to feel.
I really dont know whats going on. I dread the day my little girl leaves for university. I will have no purpose in life anymore. Whats worse is that its not like the people i know that have depression when they say stuff like i cant take the sadness anymore and that its all too much for them and they want to kill themselves. I actually weighed the pros and cons of living and dying. i have no desire to live or die. either way would be fine except for my family. they would be devestated if i werent around. Is this typical depression? should i go to a psychologist? what could they possibly do aside from putting me on meds? I have excellent health care so it shouldnt be a problem but when i think about going i just feel like meh whats the point. Any advice?