Post traumatic stress is a 'thing'. We may not have been in war zones, blown up or spent years dragging bodies out of car wrecks but only the uninformed would argue that BC is not a very, very traumatic event.
We concentrate on getting through treatment--an environment where there can be a great deal of support--and then try to get back to normal because the whole thing is 'over'. By that stage we, and everyone around us, are expecting to cope and move on. Most resources have been withdrawn because we no longer need them. It's not that simple.
It's never too late for the sort of emotional blow back you are talking about to suddenly appear. It sucks. It's difficult to explain and I have felt I am letting myself down because I feel like a grubby frayed old towel that should have been binned years ago. I can't trust myself to not lose it over silly things then am strangely indifferent about stuff that is important. Perplexing and frustrating. Another reason people don't want this disease. Marg xx