I remeber wanting so bad to just stay home and not go to the meeting I would feel physically sick (pain/nausia or some other symptom). Part of me knew I wasn't really sick and I just couldn't stand going to another meeting, but I never really thought about it like that while I was in. I have to agree with the undiagnosable sickness theory, one can only take so much of that BS before you need an excuse to miss meetings. If the mind makes the body sick then they can miss meetings with no added guilt.
CS