Hey Jimi -
I am new here and, to make it worse, I can't answer your question. Here are some things to think about though? Do you think that your friends don't know that something is wrong? Do you think that you are hurting some of them by not wanting to be around - I mean do you think that some of them may think that you are mad at them?
I remember once a friend (who hadn't been too friendly for about 6 months) said "I am sorry I haven't been around. I've been depressed." I felt a lot better and knew better how to try and help her more.
That being said I have also been told that "I am just too depressed a person to be friends with" which is kind of funny in a weird way. Can you imagine someone saying "Your cancer has just gotten to serious for me to be your friend anymore." NO! It is depression and it sucks.
All that aside my closest friend - my "domestic partner" although I never was domestic and am certainly not now - knows what is going on and how serious it. You have to have told at least 1 person the totality of how you feel - no matter how bad it is and that is for your protection. I marvel at his need for clothes to be folded! Why?