(((ThePainNeverDies)))

It's possible that you're in a more comfortable spot in life, feeling more safe to let your sadness about the past out now, and that's what the tears are from. Especially since you have a tendency to repress your sadness, Are you seeing a T? Certainly worth a discussion or two with him/her about your struggle.

I'd recommend trying not to focus on "what's the problem?", and simply let the emotions out. Write the thoughts you have freely. Hopefully that will give you better clues as to what's happening in that noggin of yours.

Best wishes to you!