Hello, I would like to find more dramas where the heroine is haunted by her traumatic past such that it interferes with and compels her actions in the present. 

A great example of this would be 'It's Okay to Not Be Okay'  where the heroine had an awful childhood and has nightmares and pulls away from people now because of it. 

Bonus points for dramatic scenes where she has to be comforted and consoled by hero. Any country's drama is fine. And while I like romance, I'm perfectly fine without it too.

Hmm I sadly only know dramas with this trope that are from korea. I do have some recommendations with the reverse though, like male lead being traumatized and having nightmares and be consoled by the female lead but with sole female lead being the one who experienced them its a bit more tricky.

Either way, Id recommend you these dramas (all have romance, all have what you look for); 
Hotel del Luna
Angel's Last Mission: Love
Just Between Lovers
My Mister
Uncontrollably Fond
The winter the wind blows

Seconding Just Between Lovers

Some of these might fit:

Come and Hug Me

Catch the Ghost

 Healer 

 He is Pyschometric 

 Mad For Each Other 

Taxi Driver has a little of that

Heart to Heart

  • Healer
  • It's okay that's love
  • What's wrong with secretary Kim
  • Come and Hug me
  • Healer
  • It's okay that's love
  • What's wrong with secretary Kim
  • Come and Hug me

Star April

Tie Me (K)not Still airring, revolutionary plot for thai drama (for now). Battered wife, female child in a patriarchal family

Last Friends her past is the beginning of the drama

Kimi ga Kokoro ni Sumitsuita 

Trauma is driving force or source of motivation (career, revenge etc)

Trauma source of major breakdown (i.e mental health issues major theme)

Live Up To Your Name FL witnessed her father dying in a traffic accident, feeling responsible. She blocked her memories of the incident but they get triggered to reappear in flashbacks and hinder her work as a surgeon