I can relate to a history of learned repression of feelings -- That was definitely my survival tactic of choice growing up and is still something I'm working through as an adult.

I've been trying to get more physically active. It may not be an emotional expression, exactly, but it does help me feel like I've gotten something out of my system. It might help your physical feelings, and it gives me a feeling of accomplishment, so I get to feel a positive emotion and not just the bad ones.

I think posting here has helped a little in this regard -- it's a safe place for me to express emotions, I'm in total control over what and when I share, etc. If I get upset, I can pull myself together at home, at my own pace, and know that other folks have gone through these types of experiences, and it might feel bad now, but we will be OK.