Hello I was wondering if someone can give any advice I used the undergroind for years loved it, recently in the last 3 months I have been having severer anxiety on the tube. I am worried we get stuck in a tunnel for hours. We be forgotten about. All sorts if electric cut and driver can't speak to us.al scenarios. Does anyone have any advice? I think it started off I read someone was stuck on a tube for 2 hours and no one knew what bad happened. Any tips will be so much appreciated!, I travel on the northern line!