I think it's really considerate to be, as you are, so observant and aware of other people's triggers!! I am also. I personally can't do groups coz of anxiety issues first, then next would be triggering other people. U need to think how much, if anything u could get out of a group without talking about triggers. It may still help you in some ways. Is there a professional facilitator to the group? If so u may be able to talk to them privately? Good luck!!! Let us know how u get on!