You betcha! For me i think it's a fairly quick assembly of various feelings. A long history of having the urge to cry at times when others would be totally mystified by it hasn't helped. I get "frozen" or numb at the time of the event, my brain's way of making sure i can physically do whatever is needed to respond to the situation, and to keep my reaction from negatively affecting the outcome. There's resentment (as in: "Great, yet another f--ing crisis kicking me to the back of the line again." and, of course, the old-school lessons of "I'll GIVE you something to cry about!", and "Real Men Don't Cry". All these things make it almost impossible to cry in front of others for me. i'll get there someday, but until then i'll just try to be more mindful of my inner life, and to shed the misconceptions as best i can. Think about crying like peeing- if you have the urge, but a long time passes before you have the chance, there's going to be a lot more of it than otherwise! I used to hate myself for feeling pathetic, wondering why when alone i'd often start sobbing uncontrollably. But when it hasn't felt safe for years to cry, or to let others see that you've been crying, this is what can happen. I get immediately uncomfortable when others, especially those i care about, start openly displaying strong emotion, whether it's affection, grief, anger, whatever. It's always too much to handle inwardly at the time; i often make a good show of being the calm steady rock, so that others won't take it as coldness, but inwardly it's usually a whole different story. Depending on the nature of the event, i can feel disassociated, angry, fearful, heartbroken, disgusted, or some combination of any of these. Hope this helps...
Give sorrow words: the grief that does not speak
Whispers the o'er-fraught heart and bids it break.
-William Shakespeare, Macbeth, Act IV, Sc. III