Depression will do that to you. When I feel depressed, which is quite often, I feel lost, too. I feel like I separate from the real world and live more in my mind, which drives me insane because it is always negative stuff.

Have you seen a psychiatrist or therapist? If not I would suggest that you do. I would lost or worse if it weren't for my psychiatrist. I'm not seeing a therapist right now, due to money issues, but if I need one I have one to call and will help me out of any emergency situation I have. It's good to know he is there.

If you feel better sharing things privately you can always PM me.

Hope you feel better soon.