Well my heart goes out to you...when my youngest left for college last year I think I had a mini breakdown. I redid the whole house from ceiling to floors by myself.
She came back for the summer, and I thought "Geee I have come to like the quiet, and when does school start again." It does make you feel like a fish out of water for awhile, but you will come to like it eventually. Also, it makes it so much sweeter when they come home to visit. It is wonderful.
Leslie