I was in group therapy many years ago,back before I ever knew I had DID and it went ok,nobody said I acted weird or strange or anything.I'm sure if I had been in group after being diagnosed it would have been much different because I would have been self conscious,worried about switching,etc.But really,it would have been the same as before the diagnosis,with nobody knowing what was going on inside of me.The only difference would have been that I knew I had DID.

Could it be that since you know you have DID you're worrying unnecessarily? Even if you do switch do you think anyone in group would know what's going on?