Fear of verbally expressing emotions

I don't know if there's a name for it, but I have an almost crippling fear of expressing my thoughts and emotions out loud to other people. This includes my general emotions, complimenting people, explaining my actions, singing, and even saying a person's name to get their attention, among other things.

I can't think of a single time in the 8 years my husband and I have been together that I've spoken his name to him. I find it almost impossible to compliment him or even tell him "I love you". He has to pull it out of me and I know he probably thinks I don't mean it. I do love him dearly and there's an endless list of things to compliment him on, I just physically can't say them out loud. My heart starts pounding, I get lightheaded, my stomach heaves, my mouth dries up, and my voice leaves me. I get these reactions will all people but they're most intense with the people that matter most to me.

I think it's partially a fear of disappointing others, but I also feel there's more to it than that. When I was a child I was expected to be perfect at all times. Anything less than perfection led to punishment, either grounding or physically with a belt. I never had anyone to open up to that I could trust so I just didn't at all to avoid being punished. Is there a phobia I've developed or is it just intense social anxiety?