Holidays mean lots of lights, food, and gatherings. It can also mean revisiting pains from the past. Some things you can do when this happens:
-find safe people
-develop boundaries and identify what you need
-seek community
-find a therapist
On my blog:
-journal or art to process
-allow chances to repair when others don't honor your experience
-share in smaller bits or allow people to check-in if they're overwhelmed by the emotions involved, yet still want to show care
http://www.organizedmesses.com/bsripom/2015/11/17/youre-still-dealing-with-that