R.
I wish I could help, but sadly I can't. My son just turned 5 in July, and we decided we couldn't put him into school this year for the same problem. Mine dosen't sound quite as bad as your situation, but he insists on following me around all day, sleeping with me, and I believe he is developing Obsessive Compulsive Disorder, which runs in my family. I believe his insistence on always being with me is a control issue with him. He feels this is something he can control, so he tries. My husband, my parents, and I have all started a tough parenting approach. He cannot go with me to work and no amount of crying will change that. He cannot sleep with me even if he cries himself to sleep. I believe in my heart that this is harder on me than it is on him. Like I said before, this seems with my son to be a control issue. Maybe it is with you. Stick in there, it's working for us, and I hope this approach will work for your family as well.