Fran, I think everyone has some similarities in their triggers but there isn't any hard and fast rules about them and there are some, myself included, that can't identify some of their triggers. I get a lot of ear pain with TN, and I've seen others say the same thing via forum posts, but I haven't read of anyone complaining of ear scratching as a trigger. I have read of others who complain about airline travel and extreme changes in altitude while in a vehicle triggering episodes. We're all wired differently, and I sometimes wonder if TN'ers are wired a lot differently than non, but thats just my frustration speaking. Take care and enjoy your remissions and pain free times.