Are you talking about an embarrassment in expressing emotions, an embarrassment by having specific emotions, or an embarrassment in admitting you have specific emotions? Maybe a composite of all three? Sorry if that's confusing, I just want to make sure my reading comprehension isn't missing anything, because we're just now exploring the same topic in my own therapy.

I am very frozen in an unfeeling stasis, and my task for this week was to think about whether I'm fearful of emotions, and if not, what's keeping me stuck in a place of non-emotion? How can we resurge some demonstrative feelings? Or some variation of that. The word "fear" replaced "embarrassment," though I guess a synonym of that word was used.

Here's how I interpreted my own behavior and it's also how I tried to explain it to my therapist (in a document to take next wk):

"[...] it's like how animals always stifle sickness and distress and don't indicate that they're in pain. It's because if they do, they're hot on the menu. They're vulnerable –* completely open to attack. It's a biological imperative for them, and a learned behavior for me; an evolutionary trait of pattern recognition where one avoids an action to avoid its negative consequences. The same reason children usually only touch a hot stove one time. Evasion is the path of least resistance, or in this case, the path away from humiliation and what I perceive as systematic rejection."

No idea if that relates to what you're feeling at all (just thought I'd insert it here bc its sort of apropos to your question) but it's an insight I came across trying to explain why expressing/working in tandem with emotions, instead of letting my brain fight me every step of the way, is such a challenge.

Okay sorry for the wordiness, hope you can gather what I mean from it :>