For some reason, projecting your thoughts through speech or writing seems to make them truer and for lack of a better phrase more real. For example if you like someone and just keep it to yourself, it just seems like a flimsy thought that you're unsure of. But once you tell a friend through speech or text, it solidifies and you are more certain of your feelings, amirite?

Thank you. This idea has been in my head forever and ironically I felt it was too "flimsy," as you put it, to share with anyone.

There's a reason for that. The approximate technical term would be mythophobia. In laymen's terms, it's called The Fear of Being Accused of Lying.

Sometimes after I share thoughts with people I feel they become more flimsy and unreal sounding than they were just in my head. As if I were overreacting internaly and only realised after I articulated it.

COULDN'T AGREE MORE.