To be understood requires that there is a common shared experience. For example, when you talk to love about an adult, almost all have experienced it, so they understand, even if the word iself is hard to define adequately. The way you see things has no common shared experience for the vast majority of others. Thus the alientation via non understanding that you meet. Words simply cannot convey its entirety.

Ifs very frustrating that you cannot get across that which you wish to. Please try to avoid turning it into a cross on your back to struggle through life with. I have a similar frustration, but a lot less intense than yours. In some circumstances I can see sounds as colours instead of hearing them. Its not that unusual, but a lot will go huh? He’s weird. Thus I have a small feel for what you experience, to me its not alien, even if I don’t fully understand it.