Help me describe my dumbfoundedness to someone

I have a list of words that I would like to be put into one sentence that has meaning, purpose, life, extortionary and with Passon, to a person that I can't put into my own words about how I feel about them. Using these words:

preposterous, Blue in the face, obscene, dumbfounded, Fathom, Thunderstrucked, delirious ("I did not know it was possible to be both, at a loss for words and lost for words at the same time")

But in a way that is not insulting them just to describe how I feel