What are some reasons that people don't express their feelings?

I'm one of those that doesn't really share my feelings with a lot of people and its because on the few times that I did I usually got hurt...

When you share your feelings - your giving away a part of yourself and that part that you have given to someone - you trust that someone not to ruin it or tell someone else. We're all human and we all want things but to have that one special thing is very hard to find. So we close ourselves from everything around us and especially within us. Maybe its insecurity but / and insecurity plays a role when we're meek and closed-up. Or maybe we're really afraid of how the other one will react, that may be so but why should you open up in the first place if you don't trust? But feelings - they are mutual, they are sometimes made up in our own little crazed up world or they truly exist - there are people who do say feelings are only in our minds but they make take over us and most of the time - they do!

I think people are mostly afraid of getting hurt. I know that's probably the main reason why I keep things inside so much. I definitely don't think that it's because people don't have feelings, it's just that sharing them is basically opening themselves up and making them vulnerable.

Yeah, those could all be reasons. I am a very insecure person when I don't know a person very well, or because I am afraid they will think I am crazy or something. Or maybe because I don't really have an opinion about the subject, I may be neutral, or not care about it.

Well, Not so Bad. I have no problem expressing mine. But, I have dated one that has had the problem. I think they are scared of the reaction.

It's probably more of the reaction from others and that they are insecure. I'm EXTREMELY outspoken on many subjects, but when it comes to expressing my feelings to some people, I'm a bit tentative because I'm scared that I may lose something if I do: my trust in with them, connection, etc.

I think people think that , sharing their feeling will make them uncomfortable and make them feel emotionally weak among their friends. Basically people share feelings to their dear and near ones only.

Fear of validation, fear of rejection, fear of appearing weak, fear of being hurt, fear of hurting the other individual. Exposing ourselves opens us to being hurt and /nobody/ wants to get hurt.