Timelines always a good idea, looking back over time away, detailing ups and downs of challenges, conflicts, crises, ongoing stresses, high points etc.
Stuff looking at grief curves
Normalizing stress reactions
You may be able to link with Advance Global Coaching who have a lot of experience with re-entry.
Get in contact for more ideas if it would be helpful. http://www.wattsyourpathway.co.uk