There is a smile on my fingers for you, as I type this — your email is full of feeling and you have used the word 'feel' a lot in it.
You clearly don't lack feelings at all, but you may not be communicating them much or not in a way which makes them visible to others.
There is nothing wrong with this fundamentally — being a private person is fine — but there are times when people need to know you understand their emotions. That you get what they feel.
In communications a lot of research has been done into this. If you wish to build rapport with someone, that is to say, achieve a productive outcome (even if you don't like them), then you must pay attention to their emotional states. People who fail to do this are poor communicators and, if they are salesmen for example, will not get repeat sales and have to re-invent their order book every year. It is an expensive strategy.
You say 'I feel people don't think I have feelings' — it may not be that. They know you do have feelings (I would bet money on it), but they can't see them, don't know what they are, and so can't respond to them or you on that level. This means your relationships may lack warmth or connection. I suspect this is really what is going on — and also what you are feeling.
If your choice has been not to share your emotions with non-family members, then people will not be seeing any evidence of them, so why indeed would they say you have any? Do you see what I mean?
If this is not making you happy, you must remember that this has been your choice.I am not saying this to blame you (pls take any notion of that out of this), but ascribing your current dissatisfaction to the behaviours of others is to give all of your power away.
The moment you take back your power and own what you chose to do, you become very very powerful in this situation and everything can change. You could start just by beginning to share how you feel a bit more. You have done this really well in your question, so it is not as if you are unable to do it. You don't have to do this all the time. Pick your moment and the person to share with.
Once you open the gates a bit more, people will connect with you, they will clearly have more of a window into your world, and your misgivings will melt away.
One last thing — avoid accusing others of judging you. You are judging them by doing this and this causes alienation and so will only undermine you further. This is not going to help you. To achieve rapport, you need to be judgement-free, so keep an open mind and consign your worries/fears/misgivings to the trash while you do something more practical around this — if indeed you wish to do this.
My suggestion?
Just try putting out a new energy for a bit — say 'I feel' a bit more often and speak honestly about what you feel. It does not have to be a heavy moment in your life — if you keep it simple, I am sure your sense of what is happening will change.
Actually, I think you will open up whole new vistas this way.